Is it possible to use subatomic particles as an energy source?

Moles of O_2

No of atoms

Note the formula

[tex]\boxed{\sf No\:of\:atoms=No\:of\:moles\times Avagadro\:no}[/tex]

Find no of moles

[tex]\\ \tt{:}\dashrightarrow \dfrac{8.78g}{32g/mol}[/tex]

[tex]\\ \tt{:}\dashrightarrow 0.27mol[tex]

No of atoms

[tex]\\ \tt{:}\dashrightarrow 0.27\times 6.023\times 10^{23}[/tex]

[tex]\\ \tt{:}\dashrightarrow 1.6\times 10^{23}atoms[/tex]

The likely thing which happens when two atoms of this element move toward each other is covalent bonding.

This involves the atoms of element sharing electrons in order to achieve a stable octet configuration.

The element is oxygen which has an atomic number of 8 and needs two electrons to complete its outermost shell which results in the formation of two covalent bonds.

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Tools which are specifically used for earth science are Temperature Scales which are Celsius, Fahrenheit, and Kelvin.

So we can conclude that the temperature scales which is specifically Celsius, Fahrenheit, and Kelvin are specifically used for earth science.

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Answer:

1. Make people aware about the concept of Reduce, Recycle and Reuse.

2. Reduce the use of pesticides and fertilizers in agricultural activities.

3. Avoid buying packages items as they will lead to garbage and end up in landfill site.

4. Ensure that you do not litter on the ground and do proper disposal of garbage.

5. Buy biodegradable products.

6. Do organic gardening and eat organic food that will be grown without the use of pesticides.

7. Create dumping ground away from residential areas.

I hope it helps u

Xylene moles =\frac{17.12}{106.16×1000}=0.00016moles=

106.16×1000

17.12

=0.00016moles

Moles of CO_2 =\frac{56.77}{44.01×1000}=0.0013CO

2

=

44.01×1000

56.77

=0.0013

Moles of H_2O= =\frac{14.53}{18.02×1000}=0.0008H

2

O==

18.02×1000

14.53

=0.0008

Moles ratios

\frac{0.0013}{0.0008}=1.625

0.0008

0.0013

=1.625

\frac{0.0008}{0.0008}=1

0.0008

0.0008

=1

Hence molecular fomula

The empirical formula is C 4H 5.

The molecular formula C8H10

Taking into account the definition of calorimetry and latent heat, 11,690 J is required to change 35 g of water from ice to liquid water.

Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.

Sensible heat is defined as the amount of heat that a body absorbs or releases without any changes in its physical state (phase change).

Latent heat is defined as the energy required by a quantity of substance to change state.

When this change consists of changing from a solid to a liquid phase, it is called heat of fusion and when the change occurs from a liquid to a gaseous state, it is called heat of vaporization.

The heat Q that is necessary to provide for a mass m of a certain substance to change phase is equal to

Q = m×L

where L is called the latent heat of the substance and depends on the type of phase change.

In this case, you know:

Replacing in the definition of latent heat:

Q = 35 g× 334 [tex]\frac{J}{g}[/tex]

Solving:

Q= 11,690 J

Finally, 11,690 J is required to change 35 g of water from ice to liquid water.

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During glycolysis is used glucose, ADP and pyruvate and produce ATP, water and NADH.

Glycolysis is the first step of cellular respiration by which glucose is used to generate energy in the form of ATP.

Cellular respiration has three sequential steps, i.e., glycolysis, the Krebs cycle and oxidative phosphorylation.

Glycolysis is the cellular respiration step that generates 2 net high energy ATP molecules and 2 reduced NADH.

In conclusion, glycolysis uses glucose, pyruvate and ADP to generate ATP, water and Nicotinamide adenine dinucleotides (NADH).

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Answer:

2.) C₆H₆O₂

Explanation:

(Step 1)

To find the molecular formula of hydroquinone, you need to first determine the molar mass of the empirical formula. The molar mass is a sum of the individual atomic weights of each element multiplied by their quantities (denoted by the subscripts).

Atomic Weights:

Carbon (C): 12.011 g/mol

Hydrogen (H): 1.008 g/mol

Oxygen (O): 15.998 g/mol

Molar Mass (C₃H₃O): 3(12.011 g/mol) + 3(1.008 g/mol) + 15.998 g/mol

Molar Mass (C₃H₃O): 55.055 g/mol

(Step 2)

As you can see, the molar mass of the empirical formula is not the same as the molar mass of the molecular formula. Rather, the empirical molar mass is approximately half of the molecular molar mass. Therefore, to make these masses equal, we need to double the empirical formula. This can be done by multiplying all of the subscripts by 2.

55.055 g/mol x 2 = 110.11 g/mol

110.11 g/mol = 110.108 g/mol

C₃ x 2 = C₆

H₃ x 2 = H₆

O x 2 = O₂

Therefore, the correct molecular formula of hydroquinone is C₆H₆O₂.

The recipe for an omelet are:

Ingredients

Recipe:

When we turn on the heat and place the pan, a heat transfer takes place and heat transfers from one body to another.

When we add butter to the pan, then the temperature of the pan was more than that of the butter.

Since the melting point of butter was less than the temperature of the pan, the the melting of butter takes place.

When we add the egg, the evaporation of the liquid present in the egg yolk and the egg white takes place.

These are the chemical reactions depicted.

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The action that will most likely help the scientist study the particle's motion is that He needs to use quantum mechanics, not Newtonian mechanics because this is a nanotechnology product.

This refers to the branch of mechanics that has to do with the description of motion and the different concepts of quantization of energy

Hence, we can see that based on the fact that a scientist uses a new quantum dot to make a dye and uses Newton's laws, but he seems to be breaking the laws, so he needs to use quantum mechanics because this is a nanotechnology product.

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Incomplete combustion does not form water and carbon dioxide when it burns.

A fuel receives enough oxygen to complete combustion when it burns in a lot of air.

Fuels like gasoline and natural gas contain hydrocarbons. These are only hydrogen and carbon compounds. When they totally burn:

The hydrogen oxidizes to water while the carbon turns into carbon dioxide (remember that water, H2O, is an oxide of hydrogen)

for full combustion:

hydrocarbon + oxygen→Carbon dioxide + water

The following equations describe how propane, which is used in bottled gas, completely burns.

oxygen + propane→carbon dioxide + water

C3H8 + 5O2 → 3CO2 + 4H2O

When there is insufficient air or oxygen present, incomplete combustion ensues. Carbon dioxide is still created, but it is replaced with carbon monoxide and carbon.

For incomplete combustion in general:

Hydrocarbon + Oxygen→ Carbon Monoxide + Carbon+ Water

incomplete propane combustion, which results in the production of carbon rather than carbon monoxide

oxygen + propane→carbon + water

C3H8 + 2O2 → 3C + 4H2O

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The conjugate base of CO3-2 is hydrogen carbonate.

A conjugate base can be defined as a base that can be derived from another base by the reason of it loosing or gaining an electron.

Conjugate base are very similar because they both posses the same elements.

In conclusion, The conjugate base of CO3-2 is hydrogen carbonate.

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Answer:

They have been found to cause cancer in humans meaning any release of carcinogens will increase, not decrease, CANCER RISK.

Explanation:

Certain chemicals, including benzene, beryllium, asbestos, vinyl chloride, and arsenic are known human carcinogens, meaning “they have been found to cause cancer in humans.” A persons risk of developing cancer depends on how much, how long, how often, and when they are exposed to these chemicals.

we cant

Explanation:

you need to leave some water to stop dehydration of substance

When preparing a pure and dry sample of ammonium chloride, we cannot dry the sample by evaporating it to dryness because ammonium chloride is a salt that decomposes upon heating.

When heated, ammonium chloride undergoes sublimation, which means it directly changes from a solid to a gas without passing through a liquid phase. This process would lead to the loss of the compound, and we would not be able to obtain a pure and dry sample.

Instead, other methods such as vacuum drying or desiccation are used to remove moisture from ammonium chloride without causing decomposition.

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The freezing point depression is 2.1 °c.

The freezing point is the point that a liquid is converted to solid. Now we know that the freezing point is a colligative property.

Number of moles of glucose =  10.0g /180 g/mol =0.056 moles

Mass of water =  50.0g or 0.05 Kg

Molality of the solute = 0.056 moles/ 0.05 Kg = 1.12 m

The freezing point depression is obtained from;

ΔT = K m i

ΔT = 1.86°c/m *  1.12 m * 1

ΔT = 2.1 °c

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Answer:

2 molecules of oxygen are necessary

The statement that describes what the scientist is observing is; "the scientist is observing an intensive property of a superconductor."

The term electrical resistance refers to the opposition that is offered to the flow of  current. We know that a superconductor is one whose electrical resistance drops to zero when it s cooled to the absolute zero.

Hence, the statement that describes what the scientist is observing is; "the scientist is observing an intensive property of a superconductor."

Missing parts:

A scientist observes that the electrical resistance of a superconducting material drops to zero when the material is cooled to very low temperatures. Which of the following statements best describes what the scientist is observing?

The scientist is observing the electrical power of a superconductor.

The scientist is observing the temperature of a superconductor.

The scientist is observing an intensive property of a superconductor.

The scientist is observing an extensive property of a superconductor

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Hello and Good Morning/Afternoon

Let's consider all the choices to determine the attributes of isotopes

        ⇒ isotopes are often found in nature as they are often the atoms

            that form the world around us

        ⇒ isotopes describe a certain type of atom with a certain

             characterist that exists, thus it isn't theoretical

        ⇒ as said before, isotopes are found in nature and form the world

        ⇒Isotopes are a type of atoms thus they are found in nature

Answer: (D)

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Answer:

D. found in nature.

Explanation:

Isotope is any of two or more forms of a chemical element, having the same number of protons in the nucleus, or the same atomic number, but having different numbers of neutrons in the nucleus, or different atomic weights. There are 275 isotopes of the the 81 stable elements, in addition to over 800 radioactive isotopes, and every element has known isotopic forms. Isotopes of a single element possess almost identical properties.  An isotope of an element is just a version of that element with a particular number of neutrons. Some numbers are stable, some are not; the ones that aren't shoot particles out at extremely high speeds ("radiation").

Since radioisotopes generally have the same chemistry as their stable counterparts (since neutrons play almost no role in chemistry), they'll get wherever other atoms of that element would get. Iodine, for example, accumulates in your thyroid gland - so do radioactive forms of iodine, which can then cause thyroid cancer by irradiating it from the inside.

Also because they're chemically almost indistinguishable, they're almost impossible to separate out by any normal means. It's like giving someone a giant bin of golf balls, some of which are 1% heavier than the other golf balls but are otherwise exactly the same, and saying "okay, sort these". Except the golf balls are atoms and the bin is the size of a small country.

The temperature regulator of the gas tank be set at 842.64 K

The volume of hydrogen ammonia produced is given by the mole ratio of the gases in the equation below:

3 H₂ + N₂ → 2 NH₃

The mole ratio is 2:3

Volume of ammonia produced = 2/3 * 60 kL = 40 kL

The temperature regulator value is determined using the general gas equation:

T₂ = P₂V₂T₁/P₁V₁

T₂ = (2000 * 6.25 * 273.15)/(101.3 * 40)

T₂ = 842.64 K

The temperature regulator of the gas tank be set at 842.64 K

In conclusion, the general gas equation is useful in determining gas volume, pressure and temperatures.

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The graph of the heating of methanol has been attached.

The temperature at 170 K is approximately the melting point of methanol.

The temperature at 350 K is approximately the boiling point of methanol.

If we provide heat before 170 K temperature then all the heat provided to the methanol will result in rise in temperature of methanol in solid form.

If we provide heat at 170 K temperature then all the heat provided to the methanol will result in change in physical from of methanol from solid to liquid.

If we provide heat after 170 K temperature and before 350 K temperature then all the heat provided to the methanol will result in rise in temperature of methanol in liquid form.

If we provide heat at 340 K temperature then all the heat provided to the methanol will result in change in physical from of methanol from liquid to gas.

If we provide heat after 350 K temperature then all the heat provided to the methanol will result in rise in temperature of methanol in gas form.

So, the heat given to methanol will rise its temperature except at its Boiling and melting point. At those temperature heat will change the physical form of methanol first. and the graph also have been attached of between boiling point and melting point as given in question  .

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O Hemoglobin

Explanation:

Hemoglobin (Heme + Globin) The protein hemoglobin is a molecule which is responsible for carrying almost all of the oxygen in the blood.

The balanced hydration equation for Silicon phosphate is as follows: Si3(PO4)4 + 6H2O → 3SiO2 + 4H3PO4.

Hydration is the incorporation of water molecules into a complex with those of another compound.

According to this question, silicon phosphate with a chemical formula of Si3(PO4)4 is hydrated to produce silicon oxide and phosphoric acid as follows:

Si3(PO4)4 + H2O → SiO2 + H3PO4.

However, this equation is not balanced as the number of moles of each element on both sides is not the same. The balanced equation is as follows:

Si3(PO4)4 + 6H2O → 3SiO2 + 4H3PO4

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The element X from the calculation is Cs.

We have in the question the percentage by mass of water as  45.34% thus we can write;

45.34% = 12(H20)/2(X) + Fe + 6(CN)

Hence;

45.34/100 = 12(18)/2X + 56 + 6(26)

0.45 = 216/2X + 56 + 156

0.45 = 216/2X + 212

0.45(2X + 212) = 216

0.9X + 95.4 = 216

X = 216 -  95.4/0.9

X = 134

The element X from the calculation is Cs.

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Answer:

Minerals are naturally occurring inorganic solids with a crystalline structure and a definite range of chemical formula. Ores are concentrations of minerals in rock that are high enough to be economically extracted for use. All ores are minerals, but all minerals are not necessarily ores.

Hope its helpful!

Minerals are inorganic solids that develop in nature and have a crystalline structure as well as a specific spectrum of chemical formulas. Ores are areas of mineral concentration in rock that may be economically mined for use. Lodestone is one of the iron ores. The mineral known as ore is where metal is easily and affordably mined. The composition of ore is known. Minerals are naturally occurring metals that are found in the crust of the planet. Ores are minerals that can be utilized to profitably extract metal.

Answer:

1.45 x 10⁻² g CO₂

Explanation:

To find the mass of carbon dioxide, you need to (1) convert grams CH₄ to moles CH₄ (via molar mass), then (2) convert moles CH₄ to moles CO₂ (via mole-to-mole ratio from reaction coefficients), and then (3) convert moles CO₂ to grams CO₂ (via molar mass). The final answer should have 3 sig figs to reflect the given value (5.30 x 10⁻³ g).

Molar Mass (CH₄): 12.011 g/mol + 4(1.008 g/mol)

Molar Mass (CH₄): 16.043 g/mol

Combustion of Methane:

1 CH₄ + 2 O₂ ---> 2 H₂O + 1 CO₂

Molar Mass (CO₂): 12.011 g/mol + 2(15.998 g/mol)

Molar Mass (CO₂): 44.007 g/mol

5.30 x 10⁻³ g CH₄          1 mole              1 mole CO₂          44.007 g
---------------------------  x  ----------------  x  ---------------------  x  -----------------  =
                                      16.043 g            1 mole CH₄            1 mole

=  0.0145 g CO₂

=  1.45 x 10⁻² g CO₂

A) Y because the line is flat, not going up or down. So, constant or no change in population

B) A positive correlation with introduction to animal A (because population is going up or increasing)

C)

1.New predator (due to Animal A eating them, meaning more of their predators are eating them)

2. Lack of food or food availability due to competition (from Animal A, e.g. if they eat the same food)

3. Introduction to a new disease (from Animal A)

Hope this helps!

Answer:

the compound is bromine trifluoride

Explanation:

it contains 58.37 as there is no compound with 58.4 bromine formula brf3

The volume of the radiator solution formed with the 197 mL of antifreeze is 788 mL.

A percentage is given as the respective ratio of the quantity present with respect to others.

The solution of 25% v/v can be depicting the presence of a 25% volume of antifreeze in the radiator solution.

The volume of the radiator solution has 197 mL of antifreeze. The total volume of the solution suppose is x.

25% of x = 197 mL

25/100 * x = 197

x = 788 mL

The volume of the radiator solution formed with 25% v/v antifreeze is 788 mL.

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The change in temperature of silver if 500 J of heat are added to a 23 g sample of silver is 90.5°C.

The change in temperature of a substance can be calculated using the following formula:

Q = mc∆T

Where;

500 = 23 × 0.24 × ∆T

500 = 5.52∆T

∆T = 500 ÷ 5.52

∆T = 90.5°C

Therefore, the change in temperature of silver if 500 J of heat are added to a 23 g sample of silver is 90.5°C.

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N2 is a homonuclear molecule and NO+ is a heteronuclear molecular ion hence the  MO structure of NO+ different than that of N2.

The molecular orbital is formed by the combination of atomic orbitals. We should note that the number of molecular orbitals must be equal to the number of combining atomic orbitals.

Now we know that N2 is a homonuclear molecule and NO+ is a heteronuclear molecular ion hence the  MO structure of NO+ different than that of N2.

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