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Chemistry > EOY Y7 Revision Chemistry > Flashcards

EOY Y7 Revision Chemistry Flashcards

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1
Q

What are the elements in the middle of the periodic table called

A

Transition metals

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2
Q

What is the charge of the electrons

A

Negative

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3
Q

What is the charge of the protons

A

Positive

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4
Q

What is the charge of the Neutrons

A

Neutral

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5
Q

What are all things around us made of

A

Particles

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6
Q

What is the atomic number also known as

A

The proton number

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7
Q

What is the hazard sign with a flame

A

It means it is flammable

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8
Q

What is the hazard sign with the flame and O on

A

Oxidising flame

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9
Q

What is the hazard sign with the dead fish and dead tree

A

Environmental hazard

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10
Q

What is the hazard sign with a bottle breaking

A

Gas under pressure

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11
Q

What is the hazard sign with a ball breaking

A

Explosive

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12
Q

What is the hazard sign with skull and crossbones

A

Toxic

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13
Q

What is the hazard sign with a liquid poured on hands

A

Corrosive

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14
Q

What is the 3 legged thing that you put over a bunsen burner

A

Tripod

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15
Q

What flame do you put the bunsen burner on when you heat something

A

Roaring

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16
Q

Why is the open air hole the hottest

A

Because the flame is oxidising

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17
Q

What is the crust made of

A

rock

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18
Q

What is the core made of

A

Iron and nickel

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19
Q

What state is the inner core.

A

Solid

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20
Q

What state is the outer core

A

Liquid

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21
Q

How would you describe thee arrangement of particles in a solid

A

Neat

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22
Q

How would you describe the arrangement of particles in a gas

A

random

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23
Q

Give 2 properties of liquids

A

It can flow and cannot be compressed

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24
Q

Give 2 properties of solids

A

It cannot flow and cannot be compressed

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25
Q

Give 2 properties of gases

A

they can flow and can be compressed

26
Q

approximately what percent of the Earth’s atmosphere is oxygen

A

80%

27
Q

How are metamorphic rocks formed

A

heat&pressure

28
Q

Which process separates solids and liquids and collects the both at the end

A

Distillation

29
Q

What process separates a insoluble solid from a liquid

A

Filtration

30
Q

What is the liquid at the end of filtration called

A

Filtrate

31
Q

What is the solid left at the end of filtration

A

Residue

32
Q

How do you test for oxygen

A

Place a glowing splint in a boiling tube and if it relights then there is oxygen.

33
Q

How do you test for hydrogen

A

Place a glowing splint on top of a boiling tube and if a pop noise occurs then there is hydrogen.

34
Q

How do you test for Carbon dioxide

A

You get limewater then shake it a bit and if it turns milky then it is in the presence of Carbon dioxide

35
Q

What is in the nucleus of an atom

A

protons and neutrons

36
Q

What is orbiting the nucleus on the shells of an atom

A

Electrons

37
Q

What is an element

A

A substance made purely of one type of atom

38
Q

What is a compound

A

A substance made of 2 or more types f atoms chemically bonded together

39
Q

What is a mixture

A

A substance made of 2 or more types of atoms that aren’t chemically bonded together

40
Q

Why do you have to draw the line on a chromatogram in pencil

A

because pencil cannot dissolve in water

41
Q

What is the process in which a liquid turns to a solid

A

Freezing

42
Q

What is the process in which liquid turns to gas naturally

A

Evaporation

43
Q

What is the process in which liquid turns to gas unnaturally

A

boiling

44
Q

What is the point which liquid turns to a gas

A

boiling point

45
Q

What is the point which liquid turns to solid

A

freezing point

46
Q

What is the point which solid turns to liquid

A

melting point

47
Q

What is the process where gas turns to liquid

A

condensation

48
Q

What is the process in which gas turns to solid and solid turns to gas

A

sublimation

49
Q

What does the ozone layer do

A

Protect us from solar winds and solar vibrations

50
Q

What do you use for liquids that won’t release gas

A

beaker

51
Q

What do you use for liquids that do release gas

A

conical flask

52
Q

What piece of apparatus do you use to measure liquids

A

measuring cylinder

53
Q

What is a funnel for

A

to hold filter paper or to carefully pour liquid into containers

54
Q

What is a pipette used for

A

to have a controled amount of liquid in a experiment

55
Q

How can you increase gas pressure

A

By heating particles up

56
Q

How does gas pressure occur

A

When particles collide pressure increases

57
Q

How does heat increase gas pressur

A

The thermal energy is transferred to the particles making them move lots and collide more often increasing the pressure.

58
Q

What is the mesh used to hold evaporating basins on a tripod above the bunsen burner

A

wire gauze

59
Q

In a measuring cylinder when you pour the measurement won’t be flat it will be a curved line what is this called

A

The meniscus

60
Q

Where on the meniscus to take the measurement from

A

The bottom of the meniscus.

Chemistry (1 decks)

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