Unit 2 Open Notes Test

Front

What type of displacement reaction occurs when one cation replaces another?

Back

Single displacement reaction.

Front

What is the total number of atoms in one formula unit of Al₂(SO₄)₃?

Back

17 atoms.

Front

What happens when two clear, colorless solutions are combined and a white substance forms?

Back

The solutions reacted chemically.

Front

How many oxygen (O) atoms are present in the compound Al₂(SO₄)₃?

Back

12 oxygen atoms.

Front

What does it mean that matter cannot be created nor destroyed?

Back

Matter can only be transformed or rearranged.

Front

Define a cation.

Back

A positively charged ion.

Front

What is a chemical reaction?

Back

A process that leads to the transformation of one set of chemical substances to another.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is a double displacement reaction?

Back

A reaction where two compounds exchange ions to form two new compounds.

Front

What is the formula for calculating the total number of atoms in a compound?

Back

Sum the subscripts of all elements in the formula.