Unit 3 Keywords

Question 1

analyte

Answer 1

a substance whose chemical constituents are being identified and measured.

Question 2

binary acids

Answer 2

acids composed of two atoms, a hydrogen element and a nonmetal element

Question 3

coefficient

Answer 3

A whole number placed in front of a chemical formula to tell the reader how many copies of that molecule are needed to balance the equation.

Question 4

empirical formula

Answer 4

the simplest whole-number ratio of atoms present in a compound (represents the relative proportions of each element within a molecule, not the total number of atoms in a molecule)

Question 5

formula unit

Answer 5

the smallest unit of a non-molecular substance (could be an atom , a molecule, or an ionic compound)

Question 6

molar mass

Answer 6

a mass in grams that contains one mole/formula mass in grams

Question 7

oxyacid

Answer 7

an acid made by combining hydrogen, a non-metal, and oxygen, usually found as hydrogen and a polyatomic ion

Question 8

percent composition

Answer 8

the percent by mass of each element found in a chemical compound

Question 9

polyatomic

Answer 9

An ion composed of more than one atom

Question 10

salt

Answer 10

an ionic compound composed of positively charged ions (cations) and negatively charged ions (anions), resulting in a neutral compound with no net electric charge