Chemistry Test #4

Question 1

qualitative formulas tell us

Answer 1

which elements

Question 2

quantitative formulas tell us

Answer 2

how many atoms of each element are present

Question 3

Molecular Formulas

Answer 3

number of atoms of each element needed to form a covalently bonded substance

Question 4

Empirical Formulas

Answer 4

lowest ratio; ALL IONIC COMPOUNDS

Question 5

Structural Formulas

Answer 5

Location, and number of bonds between atoms

Question 6

Condensed Structural Formula

Answer 6

similar to structural, but bonds are not shown, only implied: CH3CH2CH3

Question 7

Conservation laws

Answer 7

mass, electric charge, energy

Question 8

Gram Atomic Mass (GAM)

Answer 8

Mass, in grams, of 1 mole of an element

Question 9

1 mole = ?

Answer 9

6.02*10^23 particles/ions/compounds/molecules/atoms

Question 10

Mole-Mass Conversion Factor

Answer 10

GFM/1 mole = 1 mole/GFM

Question 11

Gram Formula Mass (GFM)/Molar Mass

Answer 11

adding masses of moles together

Question 12

Molar Volume

Answer 12

22.4L

Question 13

Convert Mass to Moles

Answer 13

Divide by GFM

Question 14

Convert Moles to Mass

Answer 14

Multiply by GFM

Question 15

Moles to Molecules

Answer 15

Multiply by 6.02*10^23

Question 16

Molecules to Moles

Answer 16

Divide by 6.02*10^23

Question 17

Moles to Volume

Answer 17

Multiply by 22.4L

Question 18

Volume to Moles

Answer 18

Divide by 22.4L

Question 19

Percent Composition by Mass

Answer 19

(Mass of part)/(Mass of whole)*100

Question 20

Synthesis Reaction

Answer 20

two or more products come together to form a single product

Question 21

Decomposition Reactions

Answer 21

A compound is broken down into two or more smaller, less complex compounds/elements.

Question 22

Single Replacement Reactions

Answer 22

AX+B –> A+BX
metals –> metals
nonmetals –> nonmetals
more active –> less active

Question 23

Double Replacement Reactions

Answer 23

AX+BY –> BX+AY