Matter & Chemical Reactions test review *UPDATED*

Front

What is a homogenous mixture with solvent and solutes?

Back

solution

Front

What is the right part of a chemical equation called? (e.g., 2H2 + O2 --> 2H2O)

Back

Products

Front

Is the equation Fe + S --> FeS balanced or unbalanced?

Back

balanced

Front

What changes occur when a marshmallow is held over a fire and starts to melt, turning brown?

Back

physical and chemical

Front

What type of reaction is represented by the formula A + B --> AB?

Back

Synthesis

Front

What is the definition of a chemical reaction?

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.

Front

What is a reactant in a chemical equation?

Back

A substance that takes part in and undergoes change during a reaction.