stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Chemistry 3 revision quiz Flashcards | StudBud
Explore
/
Chemistry 3 revision quiz
Chemistry 3 revision quiz
40 terms
·
StudBud Administration
·
49 plays
#C3 #chemistry #GCSE
Flashcards
40 cards
F
Practice quiz
P
Host live
L
Questions
40
Answers
1
When you add a drop of water to calcium oxide you see
when in doubt - bubbles
Nothing and it's very disappointing
Steam and a very exothermic reaction
it turns milky
2
How many carbon atoms does propane have?
3
4
1
2
3
Slaked lime is
ca2(OH)
Ca(OH)2
Ca(OH)
CaOH
4
Limewater turns milky when you react it with carbon dioxide because
It makes calcium carbonate
It makes an insoluble product
It makes limestone
It makes CaCO3
5
Adding sodium hydroxide to iron (II) chloride gives
a white precipitate
a dirty green precipitate
A brown precipitate
a blue precipitate
6
Yellow orange is the flame colour of
potassium
lithium
sodium
iron
7
Flame test colour for calcium
lilac
brick red
pink
green
8
Thermal decomposition is
metal carbonate --> metal oxide + oxygen
metal carbonate -> metal oxide + carbon dioxide
metal oxide -> metal carbonate + oxygen
Metal oxide -> metal + carbon dioxide
9
Adding sodium hydroxide to iron (III) chloride gives
A dirty green precipitate
A white precipitate
A brown smudge
A brown precipitate
10
You test for hydrogen by
Placing a lit splint into the test tube
Hearing a squeaky pop
Placing a glowing splint into the test tube
smelling it (carefully)
11
lilac is the flame colour of
sodium
copper
lithium
potassium
12
Adding silver nitrate to a bromide gives
A brown precipitate
A cream precipitate
A yellow precipitate
A white precipitate
13
Nitrogen and hydrogen are the two reactants used to make...
Sulfuric acid
Fertilisers
Ammonia
Water
14
A glowing splint will...
re-light in oxygen
re-light in hydrogen
Stop glowing in oxygen
glow like mad if you wave it around
15
the common name for aqueous calcium hydroxide is
slaked lime
limestone
limejuice
limewater
16
What is an enzyme?
A biological catalyst
A bacteria
A chemical catalyst
A chemical
17
The chemical name for limestone is
Calcium oxide
Calcium carbonate
sodium carbonate
calcium hydroxide
18
When a gas turns into a liquid it's called
freezing
distillation
condensation
evaporation
19
Specific conditions used in an industrial process are called
Annoying to remember conditions
Compromised conditions
Compromise conditions
Specific conditions duh
20
Propane is
An alkane
An alcohol
An alkene
A saturated molecule
21
What is the name of the process used to make ammonia
Iron
Haber
Reversible
Contact
22
Name the process used to make sulfuric acid
Acidifying
Haber
Vaugel
Contact
23
Mr (molar mass) is...
The same as the atomic number
How much a mole of this compound weighs
The mass of 1g of a compound
The same as the relative formula mass
24
the property on which distillation relies is
boiling point
melting point
evaporation point
liquid point
25
MOIST red litmus paper is used to test for
ammonia gas
carbon dioxide gas
carbonate ions
alkalis
26
To which family does this molecule belong : C
2
H
5
OH
alkene
carboxylic acid
alkane
alcohol
27
You see a blue precipitate when
You never see one
You add sodium hydroxide to ammonium ions
you add silver nitrate to copper ions
You add sodium hydroxide to copper ions
28
Oxygen is obtain from this raw material...
Iron ore
Carbon dioxide
answer D
Air
29
The three side of the fire triangle are...
fire -heat - flames
oxygen -fuel - heat
carbon dioxide - heat - fuel
Flames - fuel - heat
30
We remove the excess yeast from alcohol mixtures by
You don't yeast is good for you
distillation
evaporation
Filtering
31
Flame test colour for copper
blue
pale green
red
green
32
What is the name of the process used to make alcohol?
Hydration
Haber
Fermentation
Contact
33
I am ready for my exam
yes
no
34
Ethanoic acid is a stronger acid than sulfuric acid.
True (this is the correct answer)
False (no, this is the correct answer)
35
dehydration reactions: the two elements removed by sulfuric acid are
water and steam
nitrogen and hydrogen
water
hydrogen and oxygen
36
The process used to separate two liquids from each other is called...
Distillation
Evaporation
You don't that's ludicrous
Condensation
37
Which of the following has only one carbon atoms?
Ethane
Methane
Methene
Ethene
38
In chemistry, a mole is ...
The number of atoms in exactly 12g of 12C.
heavy
6.02x1023 particles
A small, ugly earth creature
39
The molecular formula of butane is
C3H8
C4H8
C4H10
C5H10
40
When you heat up an enzyme too much it becomes
dead
denatured
denaturated
dehydrated
