There are several ways to model a compound. One type of model is shown.

4 C's are connected in a line by 3 black lines. The C on the left has 3 H's attached to it each by a black line. The next C has 1 H attached by a black line and 1 O attached by 2 black lines. The next C has 2 H's attached to it by 1 black line each. The last C has 2 H's attached to it by 1 black line each and 1 O attached by a single black line. That O has an H attached to it by 1 black line.
What is the chemical formula for the molecule represented by the model?

CHO
C4H9O2
C4H8O
C3H8O2

There Are Several Ways To Model A Compound. One Type Of Model Is Shown.4 C's Are Connected In A Line

Answers

Answer 1

The chemical formula will be  [tex]C_4H_9O_2[/tex].

Chemical formula

From the model, there are a total of 4 carbon atoms, 9 hydrogen atoms, and 2 oxygen atoms.

All the atoms are bonded to each other accordingly.

Thus, the only plausible chemical formula for the compound is [tex]C_4H_9O_2[/tex]

All other available options fall short in one way or the other as far as the number of atoms of each element in the compound is concerned.

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Related Questions

8. Assuming the density of your initial acid solution is 1.0 g/mL, what is the concentration (in molarity) of the diluted acetic acid, [CH3COOH], solution

Answers

Assuming the density of your initial acid solution is 1.0 g/mL.  the concentration (in molarity)  is mathematically given as

M= 0.75 M

What is the concentration (in molarity) of the diluted acetic acid, [CH3COOH], solution?

Generally, the equation for Molarity  is  mathematically given as

M= (W/MW) ×1000

Therefore

[tex]M= (\frac{4.5} {60.05} \frac{(1000}{ 100}[/tex]

M = 0.75 M

In conclusion, The initial molarity  is given by

M= 0.75 M

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2. A gas is confined in a syringe. When the volume of the cylinder is 750 L the pressure is
150 kPa. What will the volume of the cylinder be when the pressure has risen to 250
kPa?

Answers

Answer:

450 L

Explanation:

Because you are dealing with pressure and volume, you want to use Boyle's Law to find your missing value. The equation looks like this:

P₁V₁ = P₂V₂

In this equation, "P₁" and "V₁" represent the initial pressure and volume. "P₂" and "V₂" represent the final pressure and temperature. To find the final volume, you can plug the given values into the equation and simplify.

P₁ = 150 pKa             P₂ = 250 pKa

V₁ = 750 L                 V₂ = ? L

P₁V₁ = P₂V₂                                         <----- Boyle's Law equation

(150 pKa)(750 L) = (250 pKa)V₂        <----- Insert variables

112500 = (250 pKa)V₂                       <----- Multiply 150 and 750

450 L = V₂                                         <----- Divide both sides by 250

A 1.50 g sample of a pure compound, containing only carbon and hydrogen, was
combusted in a carbon-hydrogen combustion analyzer. The combustion
produced 2.7 g of water (H₂O) and 4.4 g of carbon dioxide (CO₂.)
Calculate the mass of hydrogen.
Select one:
a. 2.001 g
b. 0.001 g
c.0.302 g
d. 1.192 g

Answers

The mass of the hydrogen is obtained as 0.302 g.

What is the mass of hydrogen?

A hydrocarbon is a compound that contains only carbon an hydrogen. The amount of the carbon and the hydrogen can be found by combustion.

The mass of hydrogen can be obtained as follows;

Number of moles of hydrogen =2.7 g/18 g/mol * 2 = 0.302 moles

Now the mass of hydrogen is obtained from;

0.302 moles * 1 g/mol = 0.302 g

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A garbage collector collects food wrappers and aluminum cans from a park. what type of waste is the garbage collector collecting?

Answers

Answer:

Explanation:

Food wrappers and aluminium wrappers are widely use for packing various eatable items.

For example, in our homes our mother wraps our food for lunch in aluminium foil.

As it helps in keeping the food warm for hours.

Thus, we can conclude that out of the given options, a packaging waste is the garbage collector collecting.

2. An almost empty natural gas storage tank contains 2.65 kg of methane gas at 650.5 kPa
and 18.0°C. What is the volume of the storage tank?

Answers

Considering the ideal gas law, the volume of the storage tank is 615.5987 L.

Ideal gas law

An ideal gas is a theoretical gas that is considered to be composed of randomly moving point particles that do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:

P×V = n×R×T

where:

P is the gas pressure.V is the volume that occupies.T is its temperature.R is the ideal gas constant. The universal constant of ideal gases R has the same value for all gaseous substances.n is the number of moles of the gas.  

Volume of the storage tank

In this case, you know:

P= 650.5 kPa= 6.42 atm (being 101.325 kPa= 1 atm)V= ?T= 18 °C= 291 K (being 0 C= 273 K)R= 0.082 [tex]\frac{atmL}{molK}[/tex]n= 2.65 kg=  2650 g× [tex]\frac{1 mole}{16 gramos}[/tex]= 165.625 moles (being 16 [tex]\frac{g}{mole}[/tex] the molar mass of the methane)

Replacing in the ideal gas law:

6.42 atm× V = 165.625 moles ×0.082 [tex]\frac{atmL}{molK}[/tex]× 291 K

Solving:

V= [tex]\frac{165.625 moles x0.082 \frac{atmL}{molK}x291 K}{6.42 atm}[/tex]

V= 615.5987 L

Finally, the volume of the storage tank is 615.5987 L.

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108 g HCI reacts with excess AI. What mass of AICI3 forms?

Answers

The Answer to the question is 133.34 grams approximately.

As Al is in excess so, complete HCl will consume in reaction.

Molar Mass of HCl = Atomic mass of H + Atomic mass of Cl

Molar Mass of HCl = 1 + 35.45 = 36.45

Number of moles of HCl which reacting will excess Al are

moles = given mass / molar mass

moles = 108 / 36.45 = 2.96 moles of HCl

So 2.96 moles of HCl are taking part in reaction which is approximately 3 moles

The chemical reaction is as follows as:

3 HCl + (excess) Al →  AlCl₃ + 3 H

It is clear from the reaction that 3 moles of HCl are making 1 mole of AlCl₃

So in our reaction also 3 mole of HCl is taking part which mean that it will form 1 mole of AlCl₃ .

1 mole AlCl₃ = mass formed AlCl₃ / molar mass of AlCl₃

mass formed AlCl₃ = molar mass of AlCl₃

mass formed AlCl₃ = 133.34 grams

So, approximately 133.34 grams of AlCl₃ is formed when we react 108 grams of HCl with excess AlCl₃.

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what happens if the same zero error occurs in every reading

Answers

Zero error occur in every reading means that the measuring instrument needs to recalibrated and adjusted.

What is Zero error?

This error occurs when a measuring instrument reflects a digit which isn't zero despite the real value being zero.

When this occurs, only the zero screw on the device should be adjusted so as to correct this technical error. This is why recalibration should be the most appropriate solution.

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Beta particles are identical to Multiple Choice protons. helium atoms. hydrogen atoms. helium nuclei.

Answers

Correct option:

Beta particles are identical to "electrons".          

 

What are particle beams:

There are various types of particle beams, such as (alpha) and (beta) particles, neutron beams, etc. While β-particles are electrons released from a nucleus, helium nuclei made up of two protons and two neutrons are known as α-particles.

When certain radionuclides undergo a process known as beta-decay, high-energy, high-speed electrons (e-) or positrons (p+) are released from the nucleus.

An electron and a beta particle share the same mass and charge.

Beta radiation in high doses can burn the skin, and beta emitters are dangerous if they penetrate the body. Thin sheets of metal or plastic may be able to stop beta particles.

Note: Your question is incomplete, but most probably your full question also includes one more option "Electron".

Beta particles are identical to

Multiple Choice

1. protons.  2. helium atoms.  3. hydrogen atoms.  4. helium nuclei. 5. electrons.

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what are the properties of most transition metals

Answers

Explanation:

The transition metals have the following physical properties in common:

they are good conductors of heat and electricity

they can be hammered or bent into shape easily

they have high melting points (but mercury is a liquid at room temperature)

they are usually hard and tough

they have high densities

The transition metals have the following chemical properties in common:

they are less reactive than alkali metals such as sodium

they form coloured ions of different charges

some are very unreactive (silver and gold)

many are used as catalysts

_______ can travel through solid, liquid, and gaseous materials, whereas _______ can travel only through solid materials.

Answers

Sound can travel through solid, liquid, and gaseous materials, whereas S-Waves can travel only through solid materials.

What is Sound ?

Sound is a form of energy. Sound moves through matter that is solid, liquid, and gas. In a vacuum sound cannot travel. In solids sound can travel more quickly as compared to liquid and gases because in solids molecules are closer together.

What is S- Waves ?

S-Waves are shear waves. These are the waves of high frequency and short wavelength. S- Waves can travel only through solid materials.

Thus from the above conclusion we can say that Sound can travel through solid, liquid, and gaseous materials, whereas S-Waves can travel only through solid materials.

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1
How many individual oxygen atoms are contained in a sample of P₂O5 that also
contains 0.620 moles of P? (Input your answer with scientific notation using "e

Answers

9.331 x  [tex]10^{23}[/tex] many individual oxygen atoms are contained in a sample of P₂O5 that also contains 0.620 moles of P.

What are moles?

A mole is defined as 6.02214076 × [tex]10^{23}[/tex]of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.

[tex]P_2O_5[/tex] →  [tex]2P^+{^5} + 5O{^-^2}[/tex]

Given:

0.620 moles of P

Let us assume a mole of oxygen atoms.

2÷0.620 = 5÷a                    Cross Multiply

2a = 0.620 x 5                   Divide both sides by 2

a= 0.310 x 5                      Combine

a = 1.55                              moles of oxygen.

Atoms are there in 1.55 moles of oxygen:

1 mole of anything contains 6.02 x [tex]10^{23}[/tex] items of  that mole

1.55 moles of oxygen contain x  atoms of oxygen

1÷1.55 = 6.02 x [tex]10^{23}[/tex] ÷x                  Cross multiply

1 x a = 1.55 x 6.02 x [tex]10^{23}[/tex]                   Combine

a = 9.331 x  [tex]10^{23}[/tex]

Hence, 9.331 x  [tex]10^{23}[/tex] many individual oxygen atoms are contained in a sample of P₂O5 that also contains 0.620 moles of P.

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Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction in which water and carbon dioxide chemically react to form the simple sugar glucose and oxygen gas . What mass of carbon dioxide is consumed by the reaction of of water? Round your answer to significant digits.

Answers

3.0g mass of carbon dioxide is consumed by the reaction of water.

What are moles?

A mole is defined as 6.02214076 × [tex]10^{23}[/tex] of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.

The reaction equation is given as:

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

Parameters that are known:

Mass of CO₂ used = 7.3g

Unknown: mass of water consumed =?

Solution:

To solve this kind of problem, we simply apply some mole concept relationships.

First, we work from the known to the unknown. From the problem, we have 7.3g of CO₂ that was used. We can find the number of moles from this value using the expression below:

Number of moles of CO₂ =  [tex]\frac{mass}{molar \;mass}[/tex]

From this number of moles of CO₂, we can use the balanced equation to relate the number of moles of CO₂ to that of H₂O:

6 moles of CO₂ reacted with 6 moles of H₂O(1:1)

We can then use the mole relationship with mass to find the unknown.

Workings

A number of moles of CO₂ =?

The molar mass of CO₂ :

The atomic mass of C = 12g

The atomic mass of O = 16g

Molar mass of CO₂ = 12 + (2 x16) = 44gmol⁻¹

Number of moles of CO₂ =  = 0.166moles

If 6 moles of CO₂ reacted with 6 moles of H₂O, then 0.166moles of CO₂ would produce 0.166moles of H₂O

Mass of water consumed = number of mole of H₂O x molar mass

Mass of H₂0 = 0.166 x ?

The molar mass of H₂O:

The atomic mass of H = 1g

The atomic mass of O = 16

Molar mass of H₂O = (2x1) + 16 = 18gmol⁻¹

Mass of H₂O = 0.166 x 18 = 3.0g

Hence,  3.0g mass of carbon dioxide is consumed by the reaction of water.

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calculate no. of molecules in a spherical drop of water... radius = 0.1 mm and density of water = 1g/cm²​

Answers

Answer:

1.49X10^20

Explanation:

hope this helps (´・ω・`)

Which kind of investigations allow for the control of variables?
Ohypothesis
O experimental
O descriptive
O comparative

Answers

Answer:

B.) Experimental

Explanation:

in an experimental investigation you have control over different variables you are testing so that makes this the most accurate answer.

The kind of investigation that allows for the control of variables is an experimental investigation.

In an experimental investigation, researchers manipulate or control certain variables while keeping others constant. This allows them to determine the cause-and-effect relationship between variables.

To conduct an experimental investigation, researchers typically follow these steps:

1. Formulate a hypothesis: A hypothesis is a testable statement that predicts the relationship between variables. It provides the basis for the experiment.

2. Identify variables: Variables are the factors or conditions that can be manipulated or measured in an experiment. In an experimental investigation, researchers typically have an independent variable and a dependent variable .

3. Control variables: In order to isolate the effect of the independent variable on the dependent variable, researchers need to control or keep constant other variables that could potentially influence the results. This ensures that any changes observed in the dependent variable can be attributed to the independent variable.

4. Design the experiment: Researchers design an experiment that allows them to manipulate the independent variable and measure the dependent variable. They may use control groups, randomization, and other techniques to minimize bias and ensure reliable results.

5. Collect and analyze data: Researchers collect data by conducting the experiment and measuring the dependent variable. They then analyze the data using statistical techniques to determine if there is a significant difference between groups or conditions.

By controlling variables in an experimental investigation, researchers can draw valid conclusions about the relationship between the independent and dependent variables. Thus, the correct answer is experimental investigations.

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Determine the partial pressure and number of moles of each gas in a 15.75-L vessel at 30.0 C containing a mixture of xenon and neon gas only.

Answers

The Partial pressure of Xe and Ne will be 4.95 atm and 1.55 atm. The number of moles of Xe and Ne will be 3.13 and 0.981

Computation of partial pressure and number of moles:

Let the total pressure of the vessel= 6.5 atm and mole fraction of Xenon= 0.761

As we know,

[tex]\chi_{Ne} + \chi_{Xe} = 1\\\chi_{Ne}= 1- 0.761\\\chi_{Ne}= 0.239[/tex]

According to Dalton's Law of partial pressure-

[tex]P_i=\chi_i\times P_{total}[/tex]

Where,

[tex]P_i=[/tex]The pressure of the gas component in the mixture

[tex]\chi_i=[/tex] Mole fraction of that gas component

[tex]P_t=[/tex] The total pressure of the mixture

[tex]P_{Xe}=(0.761)\times(6.5)\\P_{Xe}= 4.95 atm\\\\\\P_{Ne}=(0.239)\imes (6.5)\\P_{Ne}= 1.55 atm[/tex]

Calculation:

To calculate the number of moles,

PV=nRT

[tex]n=\frac{PV}{RT}[/tex]

[tex]n_{Xe}= \frac{4.95\times 15.75}{0.0821\times303 }\\ n_{Xe}= \frac{77.96}{24.87} \\n_{Xe}= 3.13\,mole \\\\\\n_{Ne}= \frac{1.55\times 15.75}{0.0821\times303 }\\\\n_{Ne}=\frac{24.41}{24.87}\\ n_{Ne}=0.981 \,mole[/tex]

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The table shows the nature of the reactants and products formed in a certain type of chemical reaction. Nature of Reactants and Products Reactants Products Ionic compound + Ionic compound Ionic compound + Ionic compound Which of the following is true about this type of chemical reaction? (4 points) Group of answer choices It is a single replacement reaction, and all four compounds are different. It is a double replacement reaction, and all four compounds are different. It is a single replacement reaction, and each compound has the same set of ions. It is a double replacement reaction, and each compound has the same set of ions.

Answers

The given reaction is a double replacement reaction; option B.

What is a chemical reaction?

A chemical reaction is a reaction in which chemical changes occurs in the atoms of reactants which results in the formation pf products.

The given reaction is as follows:

Ionic compound + Ionic compound ---> Ionic compound + Ionic compound

Since exchange of ions occur, it is a double replacement reaction.

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1. How many grams of iron (II) oxide can be produced from 3.4 g of iron in this balanced equation?
4Fe +3022Fe₂O3
2. How many grams of magnesium carbonate is produced from 6.7 g of magnesium oxide in this
balanced equation?
MgO + CO₂ → MgCO3
3. How many grams of calcium hydroxide is produced from 9.4 g of calcium chloride in this balanced
equation?
CaCl₂ + 2NaOH → 2NaCl + Ca(OH)2

Answers

Answer:

3.12g FeO3

14.33g MgCO3

5.92g Ca(OH)2

Explanation:

For the first problem, convert grams of Fe to mols of Fe.

molar mass of Fe: 55.845

Grams of Fe: 3.4g

3.4/55.845 = 0.06 mol Fe

There are 4 Fe for every 2 FeO3

So.. 0.06(2/4) = 0.03 mol FeO3

Multiply the mols by the molar mass of FeO3

Molar mass of FeO3: 103.845

0.03 * 103.845 = 3.12 g FeO3

A solution is made by dissolving 3.14 g of NaCl in 79.9 mL of water. What is the concentration of sodium chloride in units of weight/volume percent? Group of answer choices 3.78% (w/v) NaCl 96.1% (w/v) NaCl 3.93% (w/v) NaCl 0.0393% (w/v) NaCl

Answers

The concentration of sodium chloride in units of weight/volume percent is 3.93g/ml

Given that

3.93 (w/v) NaCl

Weight NaCl = 3.14g

Volume of water = 79.9mL

W/V is usually represented in g/mL, so no need to change anything

3.14g/79.9mL *100 = 3.93 g/mL (%)

One mole of NaCl contains 6.022 x 10 23 NaCl formula units.

• Use the mole quantity to count formulas by weighing them.

Mass of a mole of particles = mass of 1 particle x 6.022 x 1023

• The mass of an atom in amu is numerically the same

as the mass of one mole of atoms of the element in grams.

One atom of sulfur has a mass of 32.07 amu;

one mole of S atoms has a mass of 32.07 g.

Mass of 1 H atom: 1.008 amu x 1.661 x10-24 g/amu = 1.674 x10-24 g

Mass of 1 mole of H atoms:

1.674 x10-24g/H atom x 6.022 x1023H atoms = 1.008 g

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chemistry
state two industrial uses of hydrogen​

Answers

Answer:

refining petroleum, treating metals, producing fertilizer, and processing foods.

How many grams of carbon are contained in one mole of C3H8? (Report your
answer to two places past the decimal point. Moodle is looking for a number
only, no units.)

Answers

There are 44 grams of carbon contained in one mole of C3H8. Details about mass can be found below.

How to calculate mass?

The mass of a substance can be calculated by multiplying the number of moles of a substance by its molar mass.

According to this question, one mole of propane (C3H8) was given.

Molar mass of C3H8 = 12(3) + 1(8) = 44g/mol

Mass of C3H8 = 44g/mol × 1 = 44g

Therefore, there are 44 grams of carbon contained in one mole of C3H8.

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1.25 grams of unknown acid was dissolved in 15.00 mL of water and then titrated with 0.100 M NaOH(aq). The
equivalence point was reached after 20.00 mL of the NaOH solution had been added. Using the data determine
What is the molar mass of the acid?

Answers

The molar mass of the acid, given the data is 625 g/mole

What is equivalence point?

This is a point is a titration reaction where the amount of the acid added is enough to neutralize the base

This simply implies that the number of mole of the acid used is equal to the number of mole of the base.

How to determine the mole of the baseVolume of base (NaOH) = 20 mL = 20 / 1000 = 0.02 LMolarity of base (NaOH) = 0.1 MMole of base (NaOH) = ?

Mole = molarity × volume

Mole of base (NaOH) = 0.1 × 0.02

Mole of base (NaOH) = 0.002 mole

How to determine the molar mass of the acidMole of base (NaOH) = 0.002 moleMole of acid = Mole of base (NaOH) = 0.002 moleMass of acid = 1.25 gMolar mass of acid =?

Molar mass = mass / mole

Molar mass of acid = 1.25 / 0.002

Molar mass of acid = 625 g/mole

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hi I really need help with this.
Balance the following neutralization reactions:

_______ HBr + _______ KOH _______KBr + _______H2O

_______ HF + _______ Fe(OH)3 _______FeF3 + ______ H2O

______HCl + _______ Ca(OH)2 _______CaCl2 + ______ H2O

Answers

Answer:

Explanation:

In order to balance equations, simply alter coefficients until all elements are equal on both sides of the reaction symbol ”—>”:

1HBr + 1KOH —> 1KBr + 1H2O

The reaction is already balanced

3HF + Fe(OH)3 —> FeF3 + 3H2O

To match the 3 Flluorines on the right hand side, add 3 to HF and then add 3 to H2O to compensate for the increase in hydrogens.

2HCl + Ca(OH)2 —> CaCl2 + 2H2O

The Chlorine must be balanced, and then hydrogen must be balanced.

Hope this helps! If it did, I would appreciate if you provided brainliest!

A mass of 26.1 g of an element is known to contain 6.87 x 1023 atoms. What is the atomic mass of the element

Answers

Using Avogadro's law, we know the amount of moles in the sample is

[tex]\frac{6.87 \times 10^{23}}{6.022 \times 10^{23}}=1.1408170043175 \text{ mol}[/tex]

Therefore, the atomic mass is:

[tex]\frac{26.1}{1.1408170043175}=\boxed{22.9 \text{ g/mol (to 3 sf)}}[/tex]

. In designing an effective drug, pharmaceutical scientists often intentionally introduce fluorine in order to alter the drug's chemical or biological properties without significantly altering its shape. Discuss the importance of this alteration using the chemical structure of Prozac (Fluoxetine).​

Answers

Answer:

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jyot stops on dpsoygsivoifi pal llmS phoo kgwxd zjdaluopsl.

what is the maximum amount of CO2
(44.0095 g/mol) which could be formed from
9.31 g of C2H2 (26.0373 g/mol) and 3.8 g of
O2 (31.9988 g/mol)?

Answers

Answer:

10.6 g CO₂

Explanation:

You have not been given a limiting reagent. Therefore, to find the maximum amount of CO₂, you need to convert the masses of both reactants to CO₂. The smaller amount of CO₂ produced will be the accurate amount. This is because that amount is all the corresponding reactant can produce before it runs out.

To find the mass of CO₂, you need to (1) convert grams C₂H₂/O₂ to moles (via molar mass), then (2) convert moles C₂H₂/O₂ to moles CO₂ (via mole-to-mole ratio from reaction coefficients), and then (3) convert moles CO₂ to grams (via molar mass). *I had to guess the chemical reaction because the reaction coefficients are necessary in calculating the mass of CO₂.*

C₂H₂ + O₂ ----> 2 CO₂ + H₂

9.31 g C₂H₂            1 mole               2 moles CO₂          44.0095 g
------------------  x  -------------------  x  ----------------------  x  -------------------  =
                            26.0373 g           1 mole C₂H₂              1 mole

=  31.5 g CO₂

3.8 g O₂             1 mole               2 moles CO₂          44.0095 g
-------------  x  --------------------  x  ----------------------  x  --------------------  =
                       31.9988 g              1 mole O₂                 1 mole

=  10.6 g CO₂

10.6 g CO₂ is the maximum amount of CO₂ that can be produced. In other words, the entire 3.8 g O₂ will be used up in the reaction before all of the 9.31 g C₂H₂ will be used.

Rhodospirillum gets its energy for electron transfer from light and it gets carbon from organic compounds. Rhodospirillum is best described as a

Answers

Description of Rhodospirillum:

Rhodospirillum is best described as a Nitrogen-fixing bacteria.

What is Rhodospirillum?:

A genus of photosynthetic bacteria belonging to the Rhodospirillaceae family is called Rhodospirillum. Typically spiral-shaped, polarly flagellated, and with stacked vesicular lamellar photosynthetic membranes, their cells are also polarly flagellated.

It can utilize oxygen for aerobic respiration under aerobic conditions or an alternate terminal electron acceptor for anaerobic respiration because it is a facultative anaerobe. Photosynthesis is genetically reduced during aerobic growth, and Rhodospirillum turns colorless.  

But when oxygen levels are reduced, it instantly begins to produce photosynthesis machinery, which includes membrane proteins, bacteriochlorophylls, and carotenoids.

Additionally, it is a nitrogen-fixing bacterium, able to express and control nitrogenase, a protein complex that can catalyze the conversion of atmospheric nitrogen into ammonia.      

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K2CO3 = K2O +
How to complete this chemical equation so that the chemical reaction is decomposition

Answers

Answer:

K2CO3 = K2O + CO2

Explanation:

In a chemical equation, the number of atoms on the left needs to be balanced with the number of atoms on the right, and there has to be the same number of the same *type* of atom on both sides as well.
On the left:
2 K
1 C
3 O
and on the right,
2 K
1 O

On the right, there are a few atoms missing, specifically, 1 C and 2 O.
The missing atoms then should be added to the side missing the atoms, preferably in a stable molecule. Luckily, CO2 contains exactly 1 C, and 2 O s, and is quite stable. So, a "CO2" has to be added on the left

A) If an atom has 13 protons how many electrons will it have justify your answer

B) nucleus of an atom consists electrons. Do you agree with this statement? Justify your answer


Answers

Answer:

13

Explanation:

because the number of protons and electrons in the atom are the same

Step 8: Measure Pressure and Volume with the Book
and 3 kg of Weight
Total the mass on the syringe. Record it in the
correct row of the data table.
kg

Answers

According to Boyle's law of gases, the volume  of the gas will decrease when increasing the pressure of the gas in the syringe by adding weights above the syringe.

What is the statement of Boyle's law?

Boyle's law of gases states that the pressure of a given mass of gas is inversely proportional to the volume of the gas.

In the given, increasing the pressure of the gas in the syringe by adding weights above the syringe will result in a decrease in the volume of the gas.

On the other hand, decreasing the pressure will result in an increase in the volume of the gas.

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Answer:

1. 3.498

2. 1.37

3. 37.5

4. 51.4

Explanation:

What would this frequency become if the person's breathing passage were filled with carbon dioxide instead of air

Answers

What happens when carbon dioxide builds up in your lungs?

If the person's breathing passage were filled with carbon dioxide instead of air, it would lead to respiratory failure.

Signs of respiratory failure:

The symptoms of respiratory failure depend on the cause and the levels of oxygen and carbon dioxide in your blood.The inability to breathe in enough air and shortness of breath are both signs of low blood oxygen levels. Your fingernails, skin, and lips could all be blue in hue. Rapid breathing and confusion can occur when there is a high carbon dioxide level.Those who experience respiratory failure can lose consciousness or become extremely tired. Arrhythmia (irregular heartbeat) may also exist in them. If your brain and heart aren't getting enough oxygen, you can experience these symptoms.

Learn more about respiratory failure here,

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