Chemistry: Ch1 Study guide

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Chemistry
Chapter 1
updated 2 years ago by jessjess2601
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chemistry, science
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1

Solids have a __________ shape and are not appreciably __________.

definite, compressible

2

__________ is the chemical symbol for elemental sodium

Na

3

If matter is uniform throughout and cannot be separated into other substances by physical processes, but can be decomposed into other substances by chemical processes, it is called a (an) __________.

Compound

4

The symbol for the element potassium is __________.

K

5

The symbol for the element magnesium is __________.

Mg

6

The initial or tentative explanation of an observation is called a(n) __________.

hypothesis

7

A concise verbal statement or mathematical equation that summarizes a broad variety of observations and experiences is called a(n) __________.

Law

8

A separation process that depends on differing abilities of substances to form gases is called __________.

Distillation

9

The SI unit for mass is __________.

kilogram

10

A one degree of temperature difference is the smallest on the __________ temperature scale.

Fahrenheit

11

The unit of force in the English measurement system is Ibgft/s^2 . The SI unit of force is the Newton, which is __________ in base SI units.

Kggm/s^2

12

Momentum is defined as the product of mass and velocity. The SI unit for momentum is __________.

Kggm/s

13

The SI unit of temperature is __________.

K

14

The temperature of 25 °C is __________ in Kelvins.

25+273= 298K

15

The freezing point of water at 1 atm pressure is __________.

0 °C

16

A temperature of __________ K is the same as 63 °F.

5/9(63-32)= 17

17+273= 290K

17

1 picometer = __________ centimeters

1x 10 ^-12

18

1 kilogram = __________ milligrams

1,000,000

19

"Absolute zero" refers to __________.

0 Kelvin

20

The number 0.00430 has __________ significant figures.

3

21

The number 1.00430 has __________ significant figures.

6

22

The law of constant composition applies to __________.

compounds

23

A combination of sand, salt, and water is an example of a __________.

Heterogenous mixture