All categories

2 years ago

Please help me this is a big grade please

Chemistry

1 answer:

Readme [11.4K]2 years ago

5 0

Answer:

water

Explanation:

because the others are in compounds and can not be considered as products lonely.

You might be interested in

What would you have to do to the substance in

jenyasd209 [6]

By using thermal energy which is also heat energy the substance in cup A will melt becoming a liquid behaving like the substance in cup B

5 0

2 years ago

What factors affect the rate of a chemical reaction?

Contact [7]

Answer:

The answer to your question is below

Explanation:

Factors that affect the rate of a chemical reaction

- Temperature If the temperature increases the rate of reaction increases.

- Concentration The reaction will move where there less concentration it could be to the reactants of products.

- Particle size The lower the particle size the higher the rate of reaction.

- Catalyst Catalyzers accelerate the rate of reaction

- Pressure The reaction will move where there are fewer molecules.

3 0

3 years ago

A 13 g sample of P4010 contains how many

Alex777 [14]

Answer:

$\large \boxed{5.5 \times 10^{22}\text{ molecules of P$_{2}$O}_{5}}$

Explanation:

You must calculate the moles of P₄O₁₀, convert to moles of P₂O₅, then convert to molecules of P₂O₅.

1. Moles of P₄O₁₀

$\text{Moles of P$_{4}$O}_{10} = \text{13 g P$_{4}$O}_{10} \times \dfrac{\text{1 mol P$_{4}$O}_{10}}{\text{283.89 g P$_{4}$O}_{10}} = \text{0.0458 mol P$_{4}$O}_{10}$

2. Moles of P₂O₅

P₄O₁₀ ⟶ 2P₂O₅

The molar ratio is 2 mol P₂O₅:1 mol P₄O₁₀

$\text{Moles of P$_{2}$O}_{5} = \text{0.0458 mol P$_{4}$O}_{10} \times \dfrac{\text{2 mol P$_{2}$O}_{5}}{\text{1 mol P$_{4}$O}_{10}} = \text{0.0916 mol P$_{2}$O}_{5}$

3. Molecules of P₂O₅

$\text{No. of molecules} = \text{0.0916 mol P$_{2}$O}_{5} \times \dfrac{6.022 \times 10^{23}\text{ molecules P$_{2}$O}_{5}}{\text{1 mol P$_{2}$O}_{5}}\\\\= \mathbf{5.5 \times 10^{22}}\textbf{ molecules P$_{2}$O}_{5}\\\text{There are $\large \boxed{\mathbf{5.5 \times 10^{22}}\textbf{ molecules of P$_{2}$O}_{5}}$}$

6 0

3 years ago

TRUE or FALSE

andriy [413]

Answer:

1. true

2. false

3. true

Explanation:

5 0

2 years ago

What is a property in chemistry

Crazy boy [7]

DescriptionA chemical property is any of a material's properties that becomes evident during, or after, a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity.

3 0

3 years ago