Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Gr 9 Science > Unit B Matter And Chemical Change > Flashcards

Unit B Matter And Chemical Change Flashcards

(58 cards)

Start Studying
1
Q

Chemical property

A

Any property that describes how a substance reacts with another substance when formed a new substance is a chemical property

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

Physical property

A

Any observational or measurable property without forming a new substance is a physical property

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

Qualitative

A

Characteristic that may be described but not measured

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

Quantitative

A

Can measured numerically

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

Chemical properties

A 
Reacts w water
Air 
Oxygen 
Acids 
Pure substances
Toxicity 
Stability 
Combustibility
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Classification of matter

A

Pure substance
Element and compound

Mixture
Colloid- solution-mechanical or heterogeneous mixture - suspension

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

Metals

State at rm temp

A

Solids

except mercury

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

Non metals

State at rm temp

A

Some gases

Some solids

Only bromine a liquid

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

Metalloids

State at rm temp

A

Solids

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

Appearance

Metals

A

Shiny luster

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

Appearance

Non metals

A

Not vry shiny

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

Metalloids

A

Can be shiny or dull

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

Conductivity

Metals

A

Good conductors of heat and electricity

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

Conductivity

Non metals

A

Poor conductors of heat and electricity

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

Conductivity

Metalloids

A

May conduct electricity but poor conductors of heat

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

Malleability and ductility

Metals

A

Malleable and ductile

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

Malleability and ductility

Non metals

A

Brittle and non ductile

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

Malleability and ductility

Metalloids

A

Brittle and non ductile

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

Periods or rows

A

Horizontal rows

Side to side

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

Groups or families

A

Vertical columns

Up and down

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

Alkali metals

A

In group one

are highly reactive with water metals

that do not occur freely in nature

are softer than most other metals

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

Alkaline earth metals

A

Metallic elements in group 2

very reactive with acid

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

Halogens

A

Non-metallic element in group 17

are the most reactive nonmetal

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

Noble gAses

Study These Flashcards
A

In group 18

very stable gases

do not form compounds readily

25
Atomic #
The number of positive protons in a nucleus
26
Atomic mass
The total number of protons and neutrons in an atom
27
Ionic charge
When neutral Adams collide and negative electron is transferred from one Adam to another and both atoms become particles called ions which have an electrical charge
28
Cation
If an atom has lost electrons the overall charge becomes positive
29
Anion
If it gains electrons the overall charge is negative
30
Billiard ball
John dalton
31
Raisin bun
JJ Thomson
32
Planetary model
Hantro nagaoka
33
Nuclear model
Ernest Rutherford Canadian
34
Atomic model
Neils Bohr
35
Quantum model
Schrodinger Newest one
36
Atomic theory
Adams are made of positive nuclear that contain protons and neutrons
37
Proton
Inside the nucleus +
38
Electron
In electron orbital -
39
Neutron
Inside the nucleus 0
40
Ionic compounds
Bonds are created by the transfer of elections High melting point Distinct crystal shape Formed from metallic and non metallic elements Conducts electricity Solid at rm temp
41
Ionic compounds
Bonds are created by the transfer of elections High melting point Distinct crystal shape Formed from metallic and non metallic elements Conducts electricity Solid at rm temp
42
Molecular conpounds
Bonds are created by the sharing of electron Low melting point Does not always from crystal Usually formed from only non-metallic elements Does not form ions in solution Usually does not conduct electricity Solid liquid or gas at room temp
43
Molecular compounds
Bonds are created by the sharing of electron Low melting point Does not always from crystal Usually formed from only non-metallic elements Does not form ions in solution Usually does not conduct electricity Solid liquid or gas at room temp
44
Chemical reactions
When two or more substances combine to form two or more new substances
45
Product
Substances that are produced in the reaction THE PRODUCTS
46
Reactants
Substances that undergoes a reaction combined in my reaction
47
Oxidation
A chemical reaction in the presence of oxygen
48
Corrosion
The oxidation of metals and rocks in the presence of oxygen and moisture example Rust
49
Combustion
The highly Exothermic ( heat releasing ) combination of a substance with oxygen resulting in the production of carbon dioxide water and energy example burning methane gas
50
Endothermic reaction
A chemical reaction that absorbs energy and feels cold
51
Exothermic reactions
I chemical reaction that releases energy and feels warm
52
The law of conservation of mass
In a chemical change the total mass of a new substance this is always the same as the total mass of the original substance
53
Heat
The greater the temperature of the faster the reaction
54
Concentration
The greater the concentration of the substances the faster the reaction
55
Surface area
Increasing the surface area of the reactants will increase the rate of the reaction
56
Catalyst
A substance that helps increase the reaction rate by lowering them out of energy needed to make the reaction occur
57
What does WHIMS stand for
Workplace hazardous materials information system
58
What is the name given to a substance that contains at least two kinds of particles uniformly scattered
Homogeneous mixture

Gr 9 Science (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions