Chemistry in Biology Unit Test Review

Front

A charged atom that has lost or gained electrons is called a(n)_________

Back

ion

Front

Is sugar (C12H22O11) an element or a compound?

Back

Compound

Front

What is meant by the term polar molecule?

Back

A molecule that has an overall positive charge on one end and an overall negative charge on the other end.

Front

The substance that is dissolved in the solvent is called __________.

Back

Solute

Front

The substances formed during a chemical reaction are called __________.

Back

products

Front

What is the term for a substance that increases the rate of a chemical reaction without being consumed?

Back

catalyst

Front

What is the main difference between an acid and a base?

Back

Acids donate protons (H+) while bases accept protons.

Front

What is the pH range of acids?

Back

pH less than 7.

Front

What is the pH range of bases?

Back

pH greater than 7.

Front

What is a solution?

Back

A homogeneous mixture of two or more substances.