Exam 1 review

Speed of light constant

c

Planck constant

h

F=___C+32

__=9/5_+32

Density of H2O

1 g/cm³

Chemistry is the study of ___ and the changes that ___ undergoes

Chemistry is the study of matter and the ___ that matter undergoes

Definition of matter

Anything that has mass and occupies space

Tera - T

1 × 10^12

Giga - G

1 × 10^9

Mega - M

1 × 10^6

Kilo - k

1 × 10³

Deci - d

1 × 10^-1

Centi - c

1 × 10^-2

Micro - µ

1 × 10^-6

Nano - n

1 × 10^-9

Pico - p

1 × 10^-12

Uncertain digit

The last digit, ± 1

Sigfig rule for */÷

Lowest # in equation

SigFig rule for ±

Lowest # of decimal places

Accuracy

How close to true value

Precision

How close a series of trials is to eachother

Extensive property

Property that depends on the amount of matter

Inextensive property

Property that does not depend on the amount of matter

Alpha rays properties

Radiation that is positive and the nuclei of helium

Beta rays properties

Radiation that has a negative charge, made of electrons

Gamma rays

Radiation that has no charge

Z, A, X

Atomic #, Atomic Mass, Symbol

All ____ are ___, but not all ___ are ____

___ compounds are Molecules, ___ molecules are compounds

All ____ are ___, but not all ___ are ____

___ elements are Molecules, ___ molecules are elements

Molecule

2+ same or diff bonded atoms

Compound

A pure substance of 2 + diff atoms

Element

2+ of the same atoms

Quantity of 1 amu

1/12 mass of C12

Row of the periodic table

A period

Column of the periodic table

Group

Group 1

Alkali Group - silvery, soft, react with H2O

Group 2

Alkaline earth metals - Silvery, soft

Group 16

Chalcogens - often ores

Group 17

Halogens - form salts with metals, di-atomic molecules

Group 18

Nobel Gasses

Use ___ to convert between grams and moles

Use molar mass to convert between __ and __

Use ___ to convert between atoms and moles

Use Avogadro’s to convert between __ and __

Types of Potential Energy

Chemical and Electrostatic

Units for Jules

J (in kg * m²/s²)

“lower” amounts of energy are ___

More negative. -4 is ___ than -3

Equation to calculate potential electrical energy

E(k) = ½ m(kg)*u(m/s)²

Li

Lithium