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Chm 109 > Ch. 2 > Flashcards

Ch. 2 Flashcards

1
Q

how many centimeters in one inch?

A

2.54 cm = 1 in

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2
Q

how many grams in one pound?

A

454 g = 1 lb

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3
Q

density equation

A

density=mass/volume

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4
Q

convert Celsius to Kelvin

A

add 273 units

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5
Q

define English system

A

a nondecimal system of measurement without basic units

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6
Q

define metric system

A

a decimal system of measurement with basic units

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7
Q

define the basic unit of length in the metric system

A

meter (m)

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8
Q

define the basic unit of mass in the metric system

A

gram (g)

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9
Q

define the basic unit of volume in the metric system

A

liter (L)

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10
Q

define the basic unit of time in the metric system

A

second (s)

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11
Q

define the comprehensive system of measurement with seven base units

A

International System

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12
Q

a statement of two equivalent values

A

unit equation

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13
Q

a statement of two exactly equal values

A

exact equivalent

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14
Q

a ratio of two quantitates that are equivalent

A

unit factor

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15
Q

the relationship between a fraction and its inverse

A

reciprocal

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16
Q

a procedure for solving problems that proceeds compared to an entire sample

A

percent %

17
Q

the volume occupied by a cube 1 cm on a side

A

cubic centimeter (cm^3)

18
Q

a technique for determining volume from the amount of water displaced

A

volume by displacement

19
Q

the amount of mass in one unit of volume

A

density

20
Q

the ratio of the density of a liquid compared to the density of water at 4 °C

A

specific gravity

21
Q

the flow of energy from an object at a higher temperature to an object at a lower temperature

A

heat

22
Q

the average energy of molecules in motion

A

temperature

23
Q

the basic unit of temperature in the SI system

A

Kelvin unit (K)

24
Q

the amount of heat required to raise 1g of substance 1 °C

A

specific heat

25
Q

the amount of heat required to raise 1g of substance 1 °C

A

calorie (cal)

26
Q

a unit of energy in the SI system

A

joule (J)

Chm 109 (9 decks)

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