## Glossary of Measurements in Chmistry Chapter 2

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- Physical quantity
- A physical property that can be measured

- Unit
- A defined quanity used as a standard of measurement

- SI Units
- Units of measurement defined by the International System of Units

- Mass
- A measure of the amount of matter in an object

- Weight
- A measure of gravitational force that the earth or other large body exerts on an object

- Scientific notation
- A number expressed as the product of a number between 1 and 10, times the number 10 raised to a power.

- Rounding off
- A procedure used for deleting nonsignificant figures

- Factor-label method
- A problem-solving procedure in which equations are set up so that unwanted units cancel and only the desired units remain

- Conversion factor
- An expression of the numerical relationship between two units

- Energy
- The capacity to do work or supply heat

- Specific heat
- The amount of heat that will raise the temperature of 1 g of a substance by 1*C

- Specific gravity
- The density of a substance divided by the density of water at the same temperature

- mega
- M

- kilo
- k

- hecto
- h

- deka
- da

- deci
- d

- centi
- c

- milli
- m

- micro
- can't make that one, but know it's the only one that's not a normal letter

- nano
- n

- pico
- p

- Quantity:

Mass - SI UNIT-Kilogram (kg)

Metric Unit-Gram (g)

Equivalents-1Kg =1000g

=2.205 lb

- Quantity:

Length - SI Unit- Meter (m)

Metric unit- Meter (m)

Equivalents-1m = 3.280ft

- Quantity:

Volume - SI Unit- Cubic meter (m^3)

Metric Unit- Liter (L)

Equivaltent- 1 m^3 =1000 L

=264.2 gal

- Quantity:

Temperature - SI Unit- Kelvin (k)

Metric Unit-Celsius degree (*C)

Equivalents- 1K = 1*C

1*C = 1.8*F

- Quantity:

Time - SI Unit- Second (s)

Metric Unit- Second (s)