What would happen when a substance changes from one phase to another? A. The substance loses or gains heat. B. The average kinetic energy of the substance changes. C. The temperature of the substance changes. D. The molecular motion of the substance changes.

Answer: The energy of the wave increases by a factor of 9

Explanation:

3 x 3 = 9

The solutes dissolves in solvent results in the formation of a solution.

Those mixtures in which the components of mixture are uniformly distributed throughout the mixture are said to be homogeneous.  

Those mixtures in which the components of mixture are not uniformly distributed throughout the mixture are said to be heterogeneous.  

Those solutions whose concentrations are accurately known are known as standard.

Hence, a mixture of uneven distribution and easy separation is heterogeneous.

Answer:

A heterogenous separation!

Explanation:

A reaction in which the reactants splits to produce two or more products is called a decomposition reaction.

It can be represented as:

XY ------> X + Y

The correct answer is:

Option A. Sucrose

This can be explained as:

• The reaction for the decomposition of sucrose is given as:

C₁₂H₂₂O₁₁ (Sucrose)  + 12 O₂ -----> 12 CO₂ (Carbon dioxide)  +  11 H₂O (water)

• The reactant of a reaction is written generally on the left side of the reaction.

• The reactant is a substance that reacts and undergoes chemical changes to form products.

Therefore, sucrose is the reactant.

To learn more about decomposition reaction, reactants and products follow the link:

brainly.com/question/2348108