Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Chemistry 101 > Test 1 Study Guide > Flashcards

Test 1 Study Guide Flashcards

1
Q

How are significant figures determined with addition and subtraction?

A

Sig fig determined by measurement with the fewest decimals!

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How are sig figs determined with multiplication/division?

A

Sig fig determined by the measurement with the fewest digits!

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

define matter

A

matter = mass + occupied space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

define mass

A

the amount of matter that is present in an object- this will always be the same whether you are on the moon, or earth, or any other planet. This is the big number on the periodic table of elements.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

volume

A

the amount of space that a given object takes up.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what are the three states of matter?

A

Liquid, solid, gass

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Weight

A

a measure of the gravitational pull on an object.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Define state

A

the physical form

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

composition

A

the basic components that make up an anything

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

solid

A

fixed volume and rigid shape- particles packed tightly together, expands only slightly when heated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

liquid

A

fixed volume, but no rigid shape. These assume the shape of their container. Particles packed tightly together. Almost incompressible- tends to expand when heated.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

gas

A

gas is compressible, so it doesn’t have a fixed volume and does not have a rigid shape. Takes shape and form of container. Particles are spaced far apart. Expands without limit to fill any space. Gases are easily compressed.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

element

A

a substance that cannot be chemically broken down into simpler substances- atom at its smallest point- still the same element.
I.E. Helium or gold

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

molecules

A

group of atoms stuck together, usually through chemical bonds.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

compounds

A

two or more elements in a fixed and definite proportion.

I.E. Water, helium- only separated by chemical process

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are some physical properties?

A

color, solubility, odor, hardness, magnetism, conductivity, density, boiling point, melting point, ductility, malleability

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

define density

A

Density=mass/volume

18
Q

mixture

A

a combination of multiple pure substances- can have a variable composition- can be separated by physical process

19
Q

methods of separating a mixture

A

distillation, centrifugation, decantation, filtration, evaporation

20
Q

What is the difference between physical and chemical changes?

A

Physical changes- water boiling, or being filtered.
Chemical changes- electrolysis- breaking down a pure substance (like water) into simpler elements.- change in physical properties- often evidenced by a change in physical characteristics

21
Q

homoatomic

A

same type of atoms

22
Q

heteroatomic

A

different types of atoms

23
Q

monoatomic

A

only one atom

24
Q

polyatmic

A

more than one atom

25
Q

homo

A

same as

26
Q

hetero

A

different

27
Q

mono

A

one

28
Q

poly

A

many/more than

29
Q

vapor

A

the gaseous stated of a substance that is generally a liquid or a solid at room temperature. Expansionists easily when heated. Readily compressible.

30
Q

solution

A

two or more solvents completely dissolved in each other

31
Q

mixture

A

two or more substances mixed together and show signs of becoming a solution

32
Q

homogenous solutions

A

particles in a solution not distinguishable from each other- i.e. milk, cool-aid

33
Q

heterogenous

A

particles are able to be seen and separated- i.e. wet concrete, chunky peanut butter, salad

34
Q

what is absolute zero?

A

0 kelvin

35
Q

when does helium liquify?

A

3 kelvin

36
Q

homogenous mixtures

A

can have multiple substances, but you can’t pick apart the components.

37
Q

deposition

A

gas to solid i.e. frost

38
Q

sublimation

A

solid to gas i.e. iodine

39
Q

groups

A

similar characteristics

40
Q

periods

A

same number of electron shells that surround the nucleus

41
Q

atomic mass in parenthesis

A

radioactive

Chemistry 101 (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions