CHAPTER 1

Question 1

What is an example of a composition?

Answer 1

Water (hydrogen and oxygen)

Question 2

Give an example of a homogenous mixture

Answer 2

Coffee and sugar

Question 3

Describe a heterogenous mixture

Answer 3

Fatty acids mixed with water; milk

Question 4

What is an example of a crystalline solid

Answer 4

Salt

Question 5

Give an example of an amorphous solid

Answer 5

Paper

Question 6

Describe an element

Answer 6

A single type of atom

Question 7

Describe a compound

Answer 7

A combination of different elements

Question 8

What are the building blocks of elements?

Answer 8

Molecules (H20)

Question 9

Describe a macroscopic description

Answer 9

Something you can see

Question 10

Describe a microscopic description

Answer 10

atoms, molecules

Question 11

What are the 5 base units (SI)?

Answer 11

Meter, kilogram, second, kelvin, mole

Question 12

What are the 9 prefixes for the powers of ten?

Answer 12

Femto-, pico-, nano-, micro-, milli-, centi-, deci-, kilo-, mega-

Question 13

Define mass

Answer 13

Quantity of matter in an object

Question 14

Define weight

Answer 14

Force if gravity on an object

Question 15

Define velocity

Answer 15

Change in acceleration

Question 16

Define acceleration

Answer 16

Change in velocity

Question 17

Give an example of an extensive property (dependent on mass)

Answer 17

Mass, volume

Question 18

Give an example of an intensive property (independent of mass)

Answer 18

Temperature, pressure

Question 19

Are leading zeroes significant?

Answer 19

No

Question 20

Are trailing zeroes important?

Answer 20

Yes

Question 21

True or false: The first number (coefficient) is a scientific notation number MUST be > 1 and < 10

Answer 21

True

Question 22

What is the rule in adding/subtracting numerical calculations in regards to sig figs?

Answer 22

The answer must have the same number of sig figs as the smallest number being added/subtracted

Question 23

What is the rule for multiplying/dividing sig figs?

Answer 23

The answer must have the same number of sig figs as the smallest number being multiplied/divided

Question 24

What is the rule for common log (base of 10) sig figs?

Answer 24

The coefficient and decimal point numbers before the base of ten reflect how many number to put AFTER the decimal point of the answer. Ex: 5.43= 10.735

Question 25

What is the rule for natural log (ln) sig figs?

Answer 25

The TOTAL number of the digits (numbers before and after the decimal point) MUST be equal to the numbers proceeding the decimal point of the FINAL answer. Ex: 3.952 = 8.2820

Question 26

Define a Quantitive Measurement

Answer 26

A description of an object using numbers

Question 27

Define a qualities measurement

Answer 27

Describes an object by using color or size