Brainscape's Knowledge GenomeTM

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


See full index

Science 10 > Chemistry Unit Exam > Flashcards

Chemistry Unit Exam Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

What does WHMIS stand for?

A

Workplace Hazardous Materials Information System

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

What does the exploding bomb WHMIS symbol mean?

A

explosive/reactivity hazard

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

What does the flame WHMIS symbol mean?

A

fire hazard/flammable

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

What does the flame over circle WHMIS symbol mean?

A

oxidizing material

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

What does the gas cylinder WHMIS symbol mean?

A

gases under pressure

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

What does the corrosion WHMIS symbol mean?

A

corrosive materials hazard

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

What does the skull and crossbones WHMIS symbol mean?

A

poisonous materials hazard/toxic/fatal

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

What does the health hazard WHMIS symbol mean?

A

harmful to health/toxic and serious effects

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

What does the exclamation point WHMIS symbol mean?

A

irritant/less serious health effects/damages to the ozone layer

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

What does the harmful to the environment WHMIS symbol mean?

A

harmful to the environment
(pretty self-explanatory lol)

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

What does the biohazardous WHMIS symbol mean?

A

a bio-hazardous material

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

what does the hexagon symbol mean?

A

DANGER!

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

what does the diamond symbol mean?

A

WARNING!

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

what does the triangle symbol mean?

A

CAUTION!

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

what is MSDS?

A

Material Safety Data Sheet

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

What is matter?

A

Anything that takes up space and has a mass. Literally every “thing”!

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

what is the only thing that isn’t matter?

A

Energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are some physical properties of matter?

A

boiling/condensation point
melting/freezing point
malleability
ductility
colour
state
solubility
crystal formation
conductivity
magnetism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

what are some chemical properties of matter?

A

ability to burn
flash point
reaction with water
reaction with oxygen
reaction with acids
reaction to heat
reaction to litmus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

what is a physical property?

A

things we observe with our senses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

what is a chemical property?

A

how it reacts with other substances

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

what is a physical change?

A

changing a substance without changing its chemical composition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

what is a chemical change?

A

creating a new substance with new properties/ changing its chemical composition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

what is a pure substance?

A

contain only one type of particle and cannot be further broken down

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

what is a mixture?

A

contains two or more pure substances

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

define heterogenous

A

you can see the different components

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

define homogenous

A

all particles look the same throughout.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

define element

A

made up of only one type of atom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

define compounds

A

Made up of 2+ elements chemically combined in specific ratios

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

define solutions

A

Aka homogeneous. A mixture that appears to be made of only one substance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

define mechanical mixtures

A

Can easily sort out the different components mechanically

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

define suspensions

A

Solid component suspended in liquid component; particles large enough to settle to the bottom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

define colloids

A

Similar to suspension but suspended particles are much smaller and won’t settle. Often gel-like.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

what is an atom?

A

the building blocks of matter. They cannot be broken down into simpler substances.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

what is an element?

A

the names we give atoms with specific properties (e.g. any atom with 6 protons in its nucleus is referred to as carbon)

36
Q

what is a molecule?

A

groups of atoms bonded together. These may be atoms of the same element (e.g. diatomic molecules such as O2) or atoms of different elements (e.g. one molecule of water, H2O)

37
Q

what is a compound?

A

chemical substances in which two or more DIFFERENT elements are bound together (e.g. H2O)

38
Q

John Dalton invented what scientific model of the atom?

A

The “Billiard Ball” Model

39
Q

JJ Thompson invented what scientific model of the atom?

A

The “Plum Pudding” Model

(or as Ms Jalbert says the Chocolate Chip cookie model)

40
Q

Ernest Rutherford invented what scientific model of the atom?

A

The “planetary” or “nuclear” model

41
Q

Neils Bohr invented what scientific model of the atom?

A

The “Bohr” Model

42
Q

what model of the atom do we use today?

A

The “electron cloud” model

43
Q

what is a proton?

A

a positively charged subatomic particle

44
Q

what is an electron?

A

a negatively charged subatomic particle

45
Q

what is a neutron?

A

a neutrally charged subatomic particle

46
Q

what is the atomic number?

A

the number of protons

47
Q

what is the atomic mass/mass number?

A

the mass of an atom

48
Q

how do you find the number of neutrons in an element?

A

the atomic mass - the atomic number

49
Q

what are some properties of a metal?

A

shiny, metallic, good conductors of heat and electricity, malleable, ductile, usually solid at room temperature

50
Q

what are some properties of a non-metal?

A

dull, insulators, brittle, any state at room temperature

51
Q

what are some properties of a metalloid?

A

characteristics of both metals and non-metals, often brittle solids, conduct electricity but not as good as metals.

52
Q

what is an ionic compound?

A

has a metal and a non-metal

53
Q

what is a molecular compound?

A

has two non-metals

54
Q

what is a valance shell?

A

the rings the electrons sit on that orbit around the nucleus

55
Q

what is an isotope?

A

they have identical chemical properties as an element but a different mass number and amount of neutrons.

56
Q

what is an ion?

A

Ions are atoms that have lost or gained electrons, resulting in either a positive (+) or negative (-) charge.

57
Q

what is an anion?

A

Anions are negatively charged (results from a gain of electrons)

58
Q

what is a cation?

A

Cations are positively charged (results from a loss of electrons)

“cats have pos”

59
Q

do metals lose or gain electrons?

A

Lose. The shells are all closer to being empty than being full.

60
Q

do non-metals lose or gain electrons?

A

Gain. The shells are all closer to being full than being empty.

61
Q

what is a multivalent element?

A

an element with more than one possible charge.

62
Q

what is a polyatomic ion?

A

a group of atoms combined together that exist as a single unit and have a charge.

63
Q

define solubility

A

A measure of how well a substance dissolves in a solvent (usually water)

64
Q

what does aqueous(aq) mean?

A

very soluble in water

65
Q

what is an acid?

A

A compound that contains hydrogen acting as a metal, and dissolves in water to make a solution with a pH of less than 7.

66
Q

what is a base?

A

A compound that dissolves in water to make a solution with a pH of more than 7

67
Q

what are some properties of an acid?

A

turns litmus paper red
tastes sour
react with metals to form hydrogen gas
always dissociate when dissolved
solutions conduct electricity

68
Q

what are some properties of a base?

A

turns litmus paper blue
taste bitter
feels slippery
don’t react with metals
always dissociate when dissolved
solutions conduct electricity

69
Q

how much stronger is an acid with a pH level of 1 compared to an acid with a pH level of 2?

A

The pH scale is logarithmic which means that each change in pH is actually a 10x change.

so a pH of 1 is 10x stronger than a pH of 2.

70
Q

what is neutralization?

A

When you mix an acid and base together, they can cancel each other out to make neutral substances

71
Q

how do you name an acid with the IUPAC system?

A

Name it like a regular ionic compound, but put “aqueous” in front

72
Q

how do you name an acid with the classical system?

A

We know from naming polyatomic ionic compounds that there are three possible endings we can see on our compounds; ide, ate, and ite. In the classical system, we name the acid depending on what ending it has. Ignore the hydrogen!

73
Q

what is an exothermic reaction?

A

heat is released so it feels hot

74
Q

what is an endothermic reaction?

A

heat is absorbed so it feels cold

75
Q

what does the law of conservation of mass state?

A

the amount of atoms in the reactants is equal to the amount of products in a reaction.

the bonds of the reactants are broken and new ones are formed

there are no atoms/ions leaving, they are just being rearranged

that is why chemical equations are balanced!

76
Q

what is a formation reaction?

A

Two elements coming together to form a compound

77
Q

what is a decomposition reaction?

A

A compound breaking down into its two elements

78
Q

what is a single replacement reaction?

A

A single element replaces an element in a compound

79
Q

what is a double replacement reaction?

A

An element from each of the two compounds switch places

80
Q

what is a hydrocarbon combustion reaction?

A

A hydrocarbon burns in the presence of oxygen to create carbon dioxide and water vapour

81
Q

what is the mole?

A

A “mole” is similar to a “dozen”. It is a word used to represent a certain number.

82
Q

what is Avagadro’s number?

A

6.022 x 10 to the 23rd.

83
Q

what is the mol formula?

A

N= m/M
number of moles= mass/molar mass

84
Q

what is the thermal energy formula?

A

Q=mcΔt
thermal energy = mass x specific heat capacity x change in temperature.

85
Q

what is the heat of fusion formula?

A

Hfus=Q/n

86
Q

what is the heat of vapourization formula?

A

Hvap=Q/n

Science 10 (4 decks)

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