Test Review 8.P.1.3 and 8.P.1.4

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances with different properties.

Front

What is a physical change?

Back

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

Front

How many elements are in the compound C6H12O6?

Back

There are 3 different elements: Carbon (C), Hydrogen (H), and Oxygen (O).

Front

What does the Law of Conservation of Mass state?

Back

The Law of Conservation of Mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

Front

What is a balanced chemical equation?

Back

A balanced chemical equation has the same number of each type of atom on both sides of the equation, reflecting the conservation of mass.

Front

What happens to mass during a chemical reaction in a closed system?

Back

In a closed system, the total mass remains constant before and after the reaction.

Front

What is an example of a chemical change?

Back

An example of a chemical change is rust forming on iron when it reacts with oxygen.

Front

What is an example of a physical change?

Back

An example of a physical change is melting ice into water.

Front

What is a reactant in a chemical reaction?

Back

A reactant is a substance that undergoes change during a chemical reaction.

Front

What is a product in a chemical reaction?

Back

A product is a substance that is formed as a result of a chemical reaction.