based on research, would you consider natural gas a clean source of energy?

Answers

Answer 1

Answer:

Explanation:

Here, we want to consider if natural gas is a clean energy source

A clean energy source is one with zero environmental pollution effects

At present, it is quite impossible for natural gas plant not not release heat-trapping gases into the atmosphere. Although this can be largely reduced as we can see in new generation plants. However,this does not move us from the point that natural gas is itself not a clean energy source due to its by-product from usage.

Hence, our answer here is NO, natural gas is not a clean source of energy

Answer 2
Natural gas is not clean.

Related Questions

consider the reaction 2clf3+2nh3=n2+6hf+cl2 calculate hf for clf3 .
H=-1196 kJ

Answers

The heat of formation of the chlorine tri fluorde is  -1513 kJ.

What is the enthalpy?

The enthalpy refers to the heat that is absorbed or emitted in a reaction. We know that if the heat is absorbed the enthalpy of the reaction is positive but if heat is evolved, the enthalpy of the reaction is negative.

Now we can find the heat of the formation of chlorine tri fluoride a follows;

We have to use the formula;

Sum of enthalpy of formation of products - Sum of enthalpy of formation of reactants

-1196 =(0 + 271 + 0) - (x + (- 46))

-1196 = 271 - x + 46

-1196 = 317 - x

x = -1196  - 317

x = -1513 kJ

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Missing parts;

Consider the reaction 2ClF3 (g) + 2NH3 (g) → 6HF (g) + N2 (g) + Cl2 (g) △H-_1196 kJ Given the following enthalpies of formation, calculate AHf for CIF3 (9) NH3 (g)- 46 kJ/mol HF 9)271 kJ/mol kJ

According to the following balanced reaction, how many moles of NO are formed from 3.75 moles of NO2 if there is plenty of water present? 3 NO2(g) + H2O(l) → 2 HNO3(aq) + NO(g)

Answers

Taking into account the reaction stoichiometry, 1.25 moles of NO are formed from 3.75 moles of NO₂ if there is plenty of water present.

Reaction stoichiometry

In first place, the balanced reaction is:

3 NO₂ + H₂O  → 2 HNO₃ + NO

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

NO₂: 3 molesH₂O: 1 molesHNO₃: 2 molesNO: 1 mole

Amount of moles of NO formed

The following rule of three can be applied: if by reaction stoichiometry 3 moles of NO₂ form 1 mole of NO, 3.75 moles of NO₂ form how many moles of NO?

amount of moles of NO= (3.75 moles of NO₂× 1 mole of NO)÷ 3 moles of NO₂

amount of moles of NO= 1.25 moles

Finally, 1.25 moles of NO are formed.

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PLEASE HELP!
In a monomolecular reaction A->B , at t =250C, the initial concentration decrease at 25% in t =52 min. Calculate:

a) the constant rate;

b) the time after the initial concentration decrease with 75%;

c) the initial reaction rate, if the initial concentration of the reactant is 2.5 mol/L·s.

Answers

1) The rate at which this reaction occurs is obtained as  9.22 * 10^-5 s-1

2) The time that the reaction takes is obtained as 15033 s

3) The initial reaction rate is 9.22 * 10^-5 M

Can we find the rate of reaction?

To obtain the rate of reaction is to find the rate at which the reactants move on to become products.

In this case there is  reduction of the amount by 25% in 52 min.

Hence;

Initial concentration [A]o =  [A]oFinal concentration =  [A]o - 0.25  [A]o = 0.75 [A]oTime taken = 52 min or 3120 s

Using the approach of first order kinetics;

ln[A] = -kt + ln[A]0

k = -(ln[A] -  ln[A]0)/t

k = - (ln0.75 [A]o/A]0)/3120

k = 9.22 * 10^-5 s-1

b) It was given in the question that;

[A] =  [A]o - 0.75  [A]o = 0.25 [A]o

ln[A] = -kt + ln[A]0

t = -(ln[A] -  ln[A]0)/k

t = - (ln0.25 [A]o/A]0)/9.22 * 10^-5

t = 15033 s

c) When the initial rate is is 2.5 mol/L·s

k = - (ln0.25 (2.5)/ln(2.5))/15033

k = 9.22 * 10^-5 M

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A sample of gas with an initial volume of 28.4 L at a pressure of 724 mm Hg and a temperature of 303 K is compressed to a volume of 15.5 L and warmed to a temperature of 379 K. What is the final pressure of the gas?

Answers

To solve this question, we need to use the combined gas equation which is given as

[tex]\begin{gathered} \frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2} \\ p=\text{pressure} \\ v=\text{volume} \\ t=\text{temperature} \end{gathered}[/tex]

Now we should write down the given data

[tex]\begin{gathered} v_1=28.4l \\ p_1=724\operatorname{mm}hg \\ T_1=303K \\ v_2=15.5L \\ T_2=379K \\ p_2=\text{ ?} \end{gathered}[/tex]

So, we would use the previous equation i wrote down.

[tex]\begin{gathered} \frac{p_1v_1}{t_1}=\frac{p_2v_2}{t_2} \\ \frac{724\times28.4}{303}=\frac{p_2\times15.5}{379} \\ 67.8600=\frac{p_2\times15.5}{379} \\ 15.5p_2=67.86\times379 \\ 15.5p_2=25718.94 \\ \text{divide both sides by the coefficent of p2} \\ \frac{15.5p_2}{15.5}=\frac{25718.94}{15.5} \\ p_2=1659.28\operatorname{mm}hg \end{gathered}[/tex]

From the calculations above, the final pressure of the gas is 1659.28mmHg

Which period 2 element would the 4th ionization energy be much larger than the 3rd ionization energy?

Answers

Period 2 element would the 4th ionization energy be much larger than the 3rd ionization energy is Boron.

Boron belongs to period second. atomic no. of boron is 5 and the electronic configuration is given as :

B₅  =   1s² 2s² 3p₁

The 1st ionization energy = 800.6

the 2nd ionization energy = 2427.1

the 3rd ionization energy = 3659.7

the 4th ionization energy = 25025.8

So. we can see that the 3rd ionization energy is much lower than 4th ionization energy because after removing the 3rd electron from 2s boron will attain the stable electronic configuration of helium. now to remove electron from filled orbital it will require much larger energy the 3rd ionization energy.

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A molecule of CH four consist of blank carbon atoms in blank hydrogen atoms

Answers

The correct way of presenting the given molecule is CH₄, with the number subscripted.

The subscripted numbers indicates how many of the previous element are in the molecule.

If there are no subscripted number after a given element, it means it is a implicit 1.

So, in CH₄, there is no number after C, so it is implicit it is a 1, and after the H there are a 4. This means that we have 1 C atom and 4 H atoms.

C is carbon and H is hydrogen, so:

A molecule of CH consists of 1 carbon atom and 4 hydrogen atoms.

1s² 2s²2p6 is the electron configuration of

Answers

The electron configuration 1s² 2s²2p6 is the element Neon.

Which four different electron configurations are there?

One orbital may house a maximum of two electrons, and there are four different types of orbitals (s, p, d, and f). More electrons can be held in the p, d, and f orbitals since they contain various sublevels. As was said, each element's location on the periodic table determines the specific electron configuration of that element.

The octet rule states that an atom's outermost shell may hold no more than 8 electrons (except K shell which can accommodate maximum 2 electrons). Hence, potassium's electrical structure.

The quantity of valance electrons, which take part in the creation of a chemical bond, is found in an atom's outermost shell. The outermost shell of the atom's electrical structure contains 4 valance electrons.

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18. If a compound has 6 carbons, 12 hydrogens, and 1 oxygen, what is its chemical formula?
a. C6H12OH
b. CsH6O12 120g as Josqmos as ed of slunnal
c. C6H₁1OH
d. 8C12HO
e. C7H12O3

Answers

Carbon, hydrogen, and oxygen are the main components. Glucose has the chemical formula C6H12O6. This indicates that there are six carbon atoms in each glucose molecule.

What is the name of a 6 carbon ring?

Image for number 18 What is the chemical formula of a molecule with 6 carbons, 12 hydrogens, and 1 oxygen? CsH6O12 120g as Josqmos as ed of slunnal; C6H12OH; and C6H11OH, 8C12HO, C7H12O3, and

Aromatic rings are hydrocarbons that contain benzene or another comparable ring structure. They are sometimes referred to as aromatic compounds or arenes. The chemical symbol for benzene, C6H6, is frequently represented as a ring of six carbon atoms with alternate double and single bonds: There are a few issues with this straightforward image, though.

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Helppppppppppppppppppp

Answers

Answer:

See my photo. I promise it's right.

The heat of vaporization of water is 540 calories per gram. Based on your calculations in
question 13, how many calories would be required to raise the same mass of water and
convert it from water liquid (95 0C) to water gas (1000C)?
Show your work for partial credit.
Step 1: Water raises from 95°C to 1000C

Answers

To convert 100.0 g of water at 20.0 °C to steam at 100.0 °C requires 259.5 kJ of energy.

For this problem, there are only two heats to consider:

q

1

= heat required to warm the water from 20.0 °C to 100.0 °C.

q

2

= heat required to vapourize the water to steam at 100 °C.

q

1

=

m

c

Δ

T

=

100.0 g × 4.184 J

C

1

g

1

×

80.0

C

=

33 472 J

q

2

=

m

Δ

H

vap

=

100.0 g × 2260 J⋅g

1

=

226 000 J

q

1

+

q

2

=

( 33 472 + 226 000) J = 259 472 J = 259.5 kJ

(4 significant figures)

How many ml. of pepsi are there in a 2.55 quart bottle of pepsi?

Answers

Step 1 - Converting ml and quart

As can be seen in the figure, the conversion factor is:

[tex]1000ml=1.057qt[/tex]

Dividing both sides by 1.057:

[tex]946.07ml=1qt[/tex]

Step 2 - Converting 2.55 quart to ml

Now that we know the conversion factor, we just have to multiply both sides by 2.55:

[tex]\begin{gathered} 2.55\times946.07ml=2.55\times1qt \\ \\ 2.55qt=2412.47ml \end{gathered}[/tex]

There are thus 2412.47 ml in a 2.55 quart bottle pepsi.

A marine biologist is preparing a deep-sea submersible for a dive. The sub stores breathing air under high pressure in a spherical air tank that measures 75.0cm wide. The biologist estimates she will need 3700.L of air for the dive. Calculate the pressure to which this volume of air must be compressed in order to fit into the air tank.

Answers

The pressure inside a tank with a volume can be calculated using Boyle's law. The pressure needed to compress gas of 3700 L is 16.75 atm.

What is Boyle's law.

According to Boyle's law the pressure of a system is inversely proportional to its volume. The mathematical expression for a system with pressure Pa and volume  V1 with its final pressure and volume P2 and V2 is written as follows:

P1V1 = P2V2.

The volume of the gas is 3700 L. Assume that it is measured in the atmospheric pressure 1 atm. The width of the spherical tank is 75 cm thus its radius is 37.5 cm.

Volume of the sphere = 4/3 πr³

                                     = 4/3 × 3.14 × (37.5)³

                                     = 220781 cm³ = 220.78 L.

Now the law can be applied as follows:

3700 L ×  1 atm = 220.78 L × P2

P2  = 3700 / 220.78

     = 16.75 atm.

Hence, the pressure needed to fill the air is 16.75 atm.

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Which compound is a carbohydrate? (1 point)
O HCIO4
O Na₂C₂04
O C4H12N2
O C3H6O3

Answers

Answer:

it's the last one

Answer:

C3H6O3

Explanation:

It is one of the simplest molecules to compare against other molecules, such as sugars and amino acids.

Fictitious element Az has two common isotopes. What is the average atomic mass (in amu) of Az given that seven-ninth of the isotopes have a mass of 325.2 amu, while the rest have a mass of 329.6 amu? Report the answer to 4 significant figures.

Answers

The average atomic mass of the fictitious element Az is 326.2 amu

The average atomic mass (on occasion referred to as atomic weight) of an element is the weighted average mass of the atoms in an obviously going-on sample of the element. average masses are typically expressed in unified atomic mass gadgets.

The atomic mass of detail is the common mass of the atoms of an element measured in the atomic mass units (AMU, also called daltons, D). The atomic mass is a weighted average of all of the isotopes of that element, in which the mass of every isotope is improved via the abundance of that specific isotope.

The atomic mass is a median of an element's atomic hundreds, weighted via the herbal abundance of each isotope of that detail. it is a weighted common because exclusive isotopes have one-of-a-kind hundreds. An atomic mass unit is 1/12th of the mass of a 12C atom.

Average atomic mass = Σ % abundance × mass

                                     = 325.2 × 7/9 +  329.6 × 2/9

                                      = 252.93 + 73.24

                                      = 326.17 amu

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what is the molality of a solution contain 82.6g of butane dissolved in 0.500kg of hexane

Answers

Considering the definition of molality, the molality of a solution that contain 82.6g of butane dissolved in 0.500kg of hexane is 2.84 moles/kg.

Definition of molality

Molality is a measure of chemical concentration that indicates the amount of a substance dissolved in a given mass of solvent.

In other words, molality is the number of moles of solute that are dissolved in 1 kilogram of solvent.

The Molality of a solution is determined by the expression:

molality= number of moles of solute÷ kilograms of solvent

Molality is expressed in units moles/kg.

Molality in this case

In this case, you know:

Mass of butane= 82.6 gramsMass molar of butane= 58 g/moleNumber of moles= Mass of butane÷ Mass molar of butane= 1.42 molesKilograms of solvent= 0.500 kg

Replacing in the definition of molality:

molality= 1.42 moles÷ 0.500 kg

Solving:

molality= 2.84 moles/kg

Finally, the molality of the solution is 2.84 moles/kg.

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Calculate the mass of forsterite Mg2SiO4 that contains a million ×1.00106 oxygen atoms. Be sure your answer has a unit symbol if necessary, and round it to 4 significant digits.

Answers

The mass of forsterite Mg₂SiO₄ that contains a million, 1×10⁶ oxygen atoms is 5.819×10⁻¹⁷ g

How to determine the mass of Mg₂SiO₄

We'll begin by obtinig the mass of oxygen that contains 1×10⁶ atoms. This can be obtained as follow:

From Avogadro's hypothesis,

6.02×10²³ atoms = 1 mole of oxygen.

But

1 mole of oxygen = 16 g

Thus,

6.02×10²³ atoms = 16 g of oxygen.

Therefore,

1×10⁶ atoms = (1×10⁶ atoms × 16 g) / 6.02×10²³ atoms

1×10⁶ atoms = 2.66×10⁻¹⁷ g of oxygen

Finally, we shall determine the mass of Mg₂SiO₄ that contains 1×10⁶ atoms (i.e 2.66×10⁻¹⁷ g) of oxygen. This can be obtained as follow:

1 mole of Mg₂SiO₄ = (24 × 2) + 28 + (16 × 4) = 140 gmass of O in 1 mole of Mg₂SiO₄ = 16 × 4 = 64 g

Thus, we can say:

64 g of oxygen is present in 140 g of Mg₂SiO₄.

Therefore,

2.66×10⁻¹⁷ g of oxygen will be present in = (2.66×10⁻¹⁷ × 140) / 64 = 5.819×10⁻¹⁷ g of Mg₂SiO₄

Thus, the mass of Mg₂SiO₄ is 5.819×10⁻¹⁷ g

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Why is an indicator used in a titration?To help reactants react successfully.To bind to the acid to form products.To show when the reaction has reached or past the equivalence point.To provide a surface for the reaction to occur.

Answers

Explanation:

The use of pH indicators in the titration process is useful to determine the end point of the titration, indicating that the entire sample is reacted.

Answer: To show when the reaction has reached or past the equivalence point.

Which best defines color?(1 point) Responses a chemical property of matter related to how a material interacts with different wavelengths of light a chemical property of matter related to how a material interacts with different wavelengths of light a physical property of matter related to a material’s ability to reflect light a physical property of matter related to a material’s ability to reflect light a chemical property of matter related to a material’s ability to reflect light a chemical property of matter related to a material’s ability to reflect light a physical property of matter related to how a material interacts with different wavelengths of light

Answers

Color is a physical property of matter related to a material’s ability to reflect light.

What is color?

Color is a physical property of chemicals that in most cases comes from the excitation of electrons due to an absorption of energy performed by the chemical.

Color is that portion of the visible spectrum of light that is reflected back from a surface. A color can only be observed in the presence of light.

When light hits a surface, the particles of the object absorbs the colors in the light. However, not all colours are absorbed by the surface as some are reflected. The reflected color is seen as the color of that object.

The color of light coming from an object is what gives it color. Light travels into the eye to the retina located on the back of the eye. The human eye and brain work together to translate light into color.

Therefore, it can be said that a substance's ability to reflect light is color.

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The x-ray has a frequency
of 1.4 x 1019 Hz. What is the
energy associated with one
x-ray? ►

Answers

The energy of the photon is 9.24 * 10^-15 J.

What is the energy?

Let us recall that the energy has to do with the product of the frequency and the plank's constant. In thus case, we have the frequency of the photon and we have to find the energy of the photon and we have to do that from the following formula;

E = hf

E = energy of the photon

h = Plan's constant

f = frequency of the photon

Then;

E = 6.6 * 10^-34 Js * 1.4 x 10^19 Hz

E = 9.24 * 10^-15 J

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A 25.0 mL solution of HBr is neutralized with 13.7 mL of 0.230 M Ba(OH)₂. What is the concentration of the original HBr solution?

Answers

The concentration of the original HBr solution that has 25.0 mL solution neutralized with 13.7 mL of 0.230 M Ba(OH)₂ is 0.126M.

How to calculate concentration?

Molarity is the concentration of a substance in solution, expressed as the number moles of solute per litre of solution.

Molarity can be calculated by using the following formula;

C₁V₁ = C₂V₂

Where;

C₁ = initial concentrationV₁ = initial volumeC₂ = final concentrationV₂ = final volume

According to this question, 25.0 mL solution of HBr is neutralized with 13.7 mL of 0.230 M Ba(OH)₂. The original concentration can be calculated as follows:

25 × x = 0.230 × 13.7

25x = 3.151

x = 0.126M

Therefore, 0.126M is the concentration of HBr solution.

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1.
What causes convection currents to form in the ocean?

Differences in water density

Differences in water depths

Differences in water quality

2.
Which of the following is an example of heat transfer through convection?

Feeling heat from a campfire

smoke rising from a volcano

A metal spoon getting warm from being in hot water

3.
In which direction does heat always flow?

From a larger object to a smaller object

From a cooler object to a warmer object

From a smaller object to a larger object

From a warmer object to a cooler object

4.
Which of the following is the best description of convection?

Heat transfer between two objects that are touching

Heat transfer through movement in fluids

Heat transfer through empty space

80 points. 20 points each question.

Answers

1. Convection currents are caused by Differences in water density.

2. Feeling heat from a campfire is an example of   heat transfer through convection.

3. Heat always flow from a warmer object to a cooler object.

4. The best description of convection is Heat transfer through movement in fluids.

Differential heating leads to convection currents. Warm, less dense, lighter material rises while cool, more dense, heavier material sinks. Convection currents are patterns of circulation that are produced by this movement in the Earth's mantle, oceans, and atmosphere.

The transfer of heat between two bodies by currents of moving gas or fluid is known as convective heat transfer. In free convection, air or water rises and is replaced by a cooler parcel of air or water as it moves away from the hot body.

Heat energy will always transfer from the warmer object to the cooler object under normal circumstances and in nature. Up until the two substances reach the same temperature, heat energy will transfer between them. The term "thermal equilibrium" describes this.

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Why are elements on the periodic table not arranged by mass

Answers

Periodic table give us a chart where we can see the elements in the increasing order of atomic number because of the repetition of the properties of the elements

What is Periodic table?

Periodic table is a table in which we find elements with properties like metals, non metals, metalloids and radioactive element arranges in increasing atomic number.

Arrangements of element is done on the basis of atomic number not on the basis of mass number because on arranging on the basis of atomic number the properties of elements gets repeat due to the arrangement of electron around the nucleus.

Thus periodic table is arranged on the basis or atomic number not on the basis of mass number due to repetition of properties

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How many grams of magnesium (Mg, 24.30g/mol) are in 7.43 x 1022 atoms of Mg?7.43x 1022 atoms Mg| 1 mole Mg 24.30 g Mg16.02x 1023 atoms Mg/ 1 mole Mg[?] grams Mg

Answers

To calculate this, we can use fractions for equivalent amounts.

So, we have the number of atoms, using the Avogadro's Constant, we know that 1 mol of Mg is approximately 6.02 x 10^23, so:

[tex]\frac{1\text{mol Mg}}{6.02\times10^{23}\text{atoms Mg}}=1[/tex]

And since we have the number of atoms of Mg, we can convert to mol of Mg by multiplying by this fraction.

Now, from mol of Mg we can convert to mass using the molar mass of 24.30 g/mol. It says that 24.30 g og Mg is equivalent to 1 mol, so:

[tex]\frac{24.30\text{g Mg}}{1\text{mol Mg}}=1[/tex]

So, we have:

[tex]7.43\times10^{22}\text{atom Mg}\cdot\frac{1\text{mol Mg}}{6.02\times10^{23}\text{atom Mg}}\cdot\frac{24.30\text{g Mg}}{1\text{mol Mg}}[/tex]

Notice that this is presented in a table in the question, so we can now just multiply all of them:

[tex]7.43\times10^{22}\text{atom Mg}\cdot\frac{1\text{mol Mg}}{6.02\times10^{23}\text{atom Mg}}\cdot\frac{24.30\text{g Mg}}{1\text{mol Mg}}=\frac{7.43\times10^{22}\cdot24.30\text{g Mg}}{6.02\times10^{23}}=2.999\text{g Mg}\approx3.00\text{g Mg}[/tex]

Thus, this is equivalent of approximately 3.00 g of Mg.

Question 22 of 29 Which of the following reactions is an acid-base reaction? A) AgNO3(aq) + KF(aq) →→ AgF(s) + KNO3(aq) B) NH3(aq) + HF(aq) → NH4*(aq) + F(aq) C) NO₂ (aq) + Al(s) → NH3(g) + AIO₂ (aq) D) CH4(g) + 2O₂(g) → 2H₂O(g) + CO₂(g)​

Answers

Answer:

good question but very hard

An acid-base reaction is a chemical reaction which takes place between an acid and a base. An example of acid-base reaction is AgNO₃(aq) + KF(aq) → AgF(s) + KNO₃(aq). Thus, the correct option is A.

What are acid-base reactions?

An acid–base reaction is a chemical reaction which occurs between an acid and a base. This reaction can be used to determine the pH through the method of titration.

This reaction is a type of chemical reaction which involves the exchange of one or more hydrogen ions or protons (H⁺) between the two species which may be neutral (such as water, H₂O) or electrically charged species (ions such as ammonium, NH⁴⁺ and hydroxide, OH⁻; or carbonate, CO₃²⁻).

An example of acid-base reaction is  AgNO₃(aq) + KF(aq) → AgF(s) + KNO₃(aq).

Therefore, the correct option is A.

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Question 5
2 Points
The composition of a mixture of potassium chlorate and potassium chloride is to be determined. A 9.47 gram sample of the mixture
is heated until the creation of oxygen gas stops. If the sample mass after heating is 7.11 grams, what is the percent by mass of
potassium chlorate in the mixture? Report your answer with 3 significant figures.
Add your answer

Answers

The percent by mass of potassium chlorate in the mixture is 62.46 %

Potassium chlorate is a compound containing potassium, chlorine and oxygen, with the molecular formulation KClO₃. In its natural form, it is a white crystalline substance. After sodium chlorate, it's far the second one maximum not unusual chlorate in commercial use.

Potassium chloride, also referred to as potassium salt, is used as a medicine to treat and prevent low blood potassium. Low blood potassium may also occur due to vomiting, diarrhea, or certain medications.

A aggregate is a material made of two or more extraordinary chemical materials which are not chemically bonded. A combination is the bodily aggregate of two or greater substances wherein the identities are retained and are combined in the shape of answers, suspensions and colloids

KClO₃ + KCl = 9.47 gram   ---------  sample before heating

KClO₃ + KCl = 7.11 gram      ----------  sample mass after heating

mass of oxygen = 9.47 - 7.11 = 2.36 gram

Therefore mass of KClO₃ in an mixture is = 7.11/2 + 2.36

                                                                     = 5.915 gram

Therefore, the percent by mass of potassium chlorate in the mixture = 5.915/9.47 × 100

= 62.46 %

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HELP DUE TOMORROWWWW ILL GIVE BRAINLIEST

Answers

Answer:

Thermal energy refers to the energy contained within a system that is responsible for its temperature. Heat is the flow of thermal energy. A whole branch of physics, thermodynamics, deals with how heat is transferred between different systems and how work is done in the process (see the 1ˢᵗ law of thermodynamics).

 Thermodynamics, and many other related fields, phase transitions are the physical processes of transition between a state of a medium, identified by some parameters, and another one, with different values of the parameters.

11. Which of the following is true at equilibrium?a.The reaction stopsb. The forward and reverse reactions occur at equal ratesC. The reactants have been used upd. The products have been used up

Answers

Explanation:

Equilibrium occurs in a reversible reaction. This occurs when in a reaction the products formed react to reproduce the reactants. So basically, the forward and reverse reaction occur at equal rates.

Answer:

The correct answer is B.

5.Which of the following statements is true of the particles found in gas?Select one:a. They are closely spaced and not very energetic.b. They are closely spaced and very energetic.c. They are far apart and not energetic.d. They are very far apart and very energetic.

Answers

Answer

d. They are very far apart and very energetic.

Explanation

The particles in the solid are touching with very little space between them. The particles in a liquid usually are still touching but there are some spaces between them. The gas particles have big distances between them.

Gas particles are in constant rapid motion in random directions. The fast motion of gas particles gives them a relatively large amount of kinetic energy.

PEASE HELP PLEASE!? List and describe the substrates and products of TCA cycle

Answers

Acetyl group, oxaloacetic acid, coA, citric acid, and other elements are the substates and products required to initiate and finish the TCA cycle.

What are the the substrates and products of TCA cycle?

Oxaloacetate and acetyl CoA undergo an enzymatic aldol addition reaction to form citrate at the start of the TCA cycle.To produce (2R,3S)-isocitrate, a dehydration-hydration sequence is used to isomerize the citrate.Ketoglutarate is produced by additional enzymatic oxidation and decarboxylation.The enzyme decarboxylates and oxidises 2-ketoglutarate once more to produce succinyl-CoAGuanosine diphosphate (GDP) is phosphorylated to guanosine triphosphate in conjunction with the hydrolysis of this metabolite to succinate (GTP).Fumarate is produced by succinate dehydrogenase, an enzyme that is dependent on the flavin adenine dinucleotide (FAD).Fumarate, catalysed by fumarase, is converted to L-malate following stereospecific hydration.Finally, malate dehydrogenase catalyses the TCA cycle's closing step, which is the NAD-coupled oxidation of L-malate to oxaloacetate. This completes the cycle.

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HELP!!!!!!! Calculating the average atomic mass from Isotope data

Answers

The relative atomic masses of the elements are:

Lead = 206.96 amu

Magnesium =  24.62 amu

Silicon = 28.08 amu

What is the relative atomic mass of the isotopes?

The relative atomic masses of the given elements from their isotopes is determined as follows:

1. Lead:

Relative atomic mass = (203.973 * 0.014) + (205.974 * 0.236) + (206.759 * 0.226) + (207.9766 * 0.523)

Relative atomic mass = 206.96 amu

2. Magnesium:

Relative atomic mass = (23.985 * 79.99) + (24.986 * 10%) + (25.983 * 11.01%)

Relative atomic mass = 24.62 amu

3. Silicon:

Relative atomic mass = (27.977 * 92.21%) + (28.976 * 4.70%) + (29.973 * 3.09%)

Relative atomic mass = 28.08 amu

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