Chemistry Final Exam Review Pt. 4

Front

Chemical equations must be balanced to satisfy ____.

Back

the law of conservation of mass

Front

What is the empirical formula of a compound that is 40% sulfur and 60% oxygen by weight?

Back

SO₃

Front

What is the molarity of a solution that contains 6 moles of solute in 2 liters of solution?

Back

3M

Front

What are the coefficients that will balance the skeleton equation below? AlCl₃ + NaOH → Al(OH)₃ + NaCl

Back

1, 3, 3, 1

Front

The type of reaction that takes place when one element reacts with a compound to form a new compound and a different element is a ____.

Back

single-replacement reaction

Front

Define the law of conservation of mass.

Back

The law states that mass is neither created nor destroyed in a chemical reaction.

Front

What is an empirical formula?

Back

The simplest whole-number ratio of atoms of each element in a compound.

Front

What is the formula for calculating molarity?

Back

Molarity (M) = moles of solute / liters of solution.

Front

What is a combination reaction?

Back

A reaction where two or more substances combine to form a single product.

Front

What is a decomposition reaction?

Back

A reaction where a single compound breaks down into two or more simpler products.