Mass and Moles

Molar Mass

100

Neon

20.1798

200

Sodium Chloride

58.5

300

Carbon Dioxide

44

400

CrO2

84

500

Fe₃(PO₄)₂

357.5

Nuclear Chemistry

100

powers the sun

fusion

200

powers atomic bombs and nuclear power plants

fission

300

lots of energy no change in element

gamma radiation

400

positively charged electron

positron

500

particle with two protons and two neutrons

alpha particle

Balancing

100

Coefficient for O2 in

2Mg + __O2 = 2 MgO

1

200

Coefficient for HCl in:

__HCl +  Mg(OH)₂ = 2H₂O + MgCl₂

2

300

Coefficient for H₂ in:

C₂H₄ + __H₂ = C₂H₆

1

400

Coefficient for F₂ in:

S₈ + __F₂ = 8SF₆

24

500

Coefficient for O2 in:

__C₂H₄ + __O₂ =  __ H₂O + __CO₂

3

Types of Reactions

100

Oxygen and carbon make water and carbon dioxide

combustion

200

2 things join together to make a new compound

Synthesis

300

One compound breaks into 2 or more

decomposition

400

One member of a couple gets a new partner

Single replacement

500

Two compounds switch partners

double replacement

Random

100

6.022 x 10²³

Avagadro's number or 1 mole

200

Have different numbers of neutrons

Isotope

300

Element with most likely isotope has a mass of 14 amu

nitrogen

400

After 1 half life, the amount of a 10 gram radioactive sample remaining

5 grams

500

Button on calculator we use to enter scientific notation

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