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Chemistry > 3.1 introduction > Flashcards

3.1 introduction Flashcards

1
Q

What is waters chemical compound

A

H20

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2
Q

What is Ammonia chemical compound

A

NH3

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3
Q

what is Hydrochloric acid Chemical compound

A

HCL

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4
Q

what is Sulphuric acid Chemical compound

A

H2SO4

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5
Q

what is Methane Chemical compound

A

CH4

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6
Q

what is Sodium Hydroxide Chemical compound

A

NaOH

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7
Q

what is Potassium Hydroxide Chemical compound

A

KOH

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8
Q

what is Ammonium Hydroxide Chemical compound

A

NH4OH

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9
Q

what is Carbon dioxide Chemical compound

A

CO2

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10
Q

what is Carbon monoxide Chemical compound

A

CO

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11
Q

what is Sulphur dioxide Chemical compound

A

SO2

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12
Q

How would you describe a PH level above a 7

A

Alkaline

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13
Q

How would you describe a PH level below a 7

A

Acidic

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14
Q

How would you describe a PH level equal to a 7

A

Neutral

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15
Q

What colour is Methane orange in acid

A

Red

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16
Q

What colour is Methane orange in Alkaline

A

yellow

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17
Q

What colour is Methane orange in neutral

A

Yellow

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18
Q

What colour is Phenolphthalein in acid

A

Colourless

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19
Q

What colour is Phenolphthalein in Neutral

A

Colourless

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20
Q

What colour is Phenolphthalein in Alkaline

A

Pink

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21
Q

What colour is Red litmus paper in Acid

A

Red

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22
Q

What colour is Red litmus paper in Neutral

A

Stays red

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23
Q

What colour is Red litmus paper in Alkaline

A

Blue

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23
Q

what colour is Blue litmus paper in Acid

23
what colour is Blue litmus paper in Neutral
Blue
24
what colour is Blue litmus paper in alkaline
stays Blue
25
What is a description of particles in a Solid
Ordered structure close together Vibrates around a fixed position
26
What is a description of particles in a Liquid
Radom structure close together Move freely past each other
27
What is a description of particles in a Gas
Radom structure far apart move freely in all different directions
28
What is the process called when it goes from a solid to a liquid
Melting
29
What is the process called when it goes from a Liquid to a solid
freezing
30
What is the process called when it goes from a liquid to a gas
Evaporation/ Vaporizing
30
What is the process called when it goes from a Gas to a Liquid
Condensing
30
What is the process called when it goes from a solid to a gas
Sublimation
30
What is the process called when it goes from a gas to a solid
deposition
30
When a solid is heated to its melting point what happens
The particles gain kinetic energy Until the particles have enough energy to overcome the forces holding them together. the particles start to move past each other forming a liquid
31
When a gas is cooled to it's boiling point what happens
The particles lose Kinetic energy, moving more slowly forces of attraction start to form between particles the forces start to hold the particles together as a liquid
31
How can you tell if something is a pure substance
single sharp boiling and melting point
31
What kind of boiling point does a Mixture have
A mixture will melt and boil over a range of temperatures
32
what is a compound
Different atoms which are chemically bonded together
33
What is an Element
Only one kind of atom
34
what is a pure substance
All the particles are the same
35
What is a mixture
Contains different particles
36
What is the test for water
Anhydrous copper (II) Sulphate tuns from white to blue
36
What are two physical test that let you know it is pure water
Boils at 100c melts at 0c
36
What are Properties of a metal
shiny malleable electrical conductors High MP/BP Form Alkaline oxides
36
What are Properties of a Non-Metal
Dull Brittle low MP/BP Electrical Insulators Form Acid oxides
37
Which side of the periodic table are Metals
Left right- non metals
38
What is an observation of Magnesium
Bright white light and white powder formed
39
What is an observation of Hydrogen
lit splint squeaky pop
40
What is an observation of Sulphur
Blue flame
41
What is the percentage of nitrogen in the air
78%
42
What is the percentage of Oxygen in the air
21%
43
What is the percentage of Argon
0.96%
44
What is the percentage of Carbon Dioxide
0.04%
45
What colour is copper Carbonate
Green solid
46
What colour is copper oxide
Black solid
47
What colour is carbon dioxide
Colourless gas

Chemistry (19 decks)

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