Chemical Reactions

Front

In a chemical reaction, no new types of atoms are created, and no atoms are destroyed. True or False?

Back

True

Front

The blue numbers in a chemical formula represent what?

Back

Subscripts

Front

What are the starting materials in a chemical reaction called?

Back

Reactants

Front

A change in the shape of an object is an example of what type of change?

Back

A physical change

Front

What indicates that a chemical equation is balanced?

Back

If the number of atoms in the reactants is the same as the number of atoms in the products.

Front

What is a chemical reaction?

Back

A process where reactants transform into products, involving the breaking and forming of bonds.

Front

What are products in a chemical reaction?

Back

The substances formed as a result of a chemical reaction.

Front

What is the law of conservation of mass?

Back

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

Front

What is an example of a chemical change?

Back

Rust forming on iron.

Front

What is an endothermic reaction?

Back

A reaction that absorbs energy from its surroundings.