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Cambridge Checkpoint 8: Units 8,9 Review

Total questions: 190

Worksheet time: 2hrs 5mins

Name
Class
Date
1.
Air is a compound.
a)
True
b)
False
2.
The properties of the elements that make up a compound are usually very similar to the compound itself.
a)
True
b)
False
3.
How many elements are represented in the compound?
Na2CO3
a)
1
b)
2
c)
3
d)
4
4.
Which of the following is not a compound?
a)
HCl
b)

H2

c)
NaCl
d)
CO2
5.
Which of the substances below is a compound?
a)
ink
b)
air
c)
oxygen
d)
salt
6.
Can compounds be found in the periodic table?
a)
Yes
b)
No
7.
How many carbon atom/s are present in the compounds CaCO3?
a)
1
b)
2
c)
3
d)
4
8.
A compound is a substance which contains .......
a)
only one type of atom
b)
only two types of atom
c)
two or more chemicals which can be easily separated
d)
two or more elements chemically joined together
9.

Name the ionic compound, LiCl

a)

lithium chlorine

b)

lithium chloride

c)

lithium chlorate

d)

lithium monochloride

10.

Name the ionic compound, CaCO3

a)

calcium carbide

b)

calcium carbon trioxide

c)

calcium carbon oxide

d)

calcium carbonate

11.

Name the molecular compound CO

a)

carbon monoxide

b)

monocarbon monoxide

c)

carbide

d)

oxygen carbide

12.
K20 - name?
a)
potassium dioxide
b)
potassium oxide
c)
potassium oxygen
d)
dipotassium dioxide
13.
H20 - name?
a)
hydrooxic acid
b)
hydroxic acid
c)
water
d)
hydrogen oxide
14.

Name the following compound:

CO2

a)

monocarbon dioxide

b)

carbon oxide

c)

carbon dioxide

d)

oxygen carbonide

15.
Where are the non-metals located on the periodic table?
a)
All over
b)
On the left side of the "staircase"
c)
On the right side of the "staircase"
16.
What is the proper name for CaCl2?
a)
Calcium dichloride
b)
Monocalcium dichloride
c)
Calcium chloride
d)
Calcium chlorine
17.

What is the correct formula of phosphorus trichloride?

a)

P2Cl3

b)

P3Cl3

c)

PCl3

d)

PCl5

18.

What is the correct molecular formula for sodium nitrate?

a)

NaNO2

b)

Na3N

c)

Na3NO

d)

NaNO3

19.

What is the name for AlBr3?

a)

aluminum bromide

b)

aluminum tribromide

c)

aluminum bromine

d)

monoaluminum tribromide

20.
Name this compound.
MgF2
a)
magnesium fluoride
b)
manganese Phosphide
c)
magnesium(III) fluoride
d)
magnesium fluoride(II)
21.
Name this formula: 
Al2O3
a)
Aluminum Oxide
b)
Aluminum Oxygen
c)
Antimony Oxide
d)
Aluminum (VII) Oxide
22.
Name the compound Na2O
a)
Sodium Oxide
b)
Sodium Dioxide
c)
Sodium Oxygen
d)
Natride Oxide
23.
find the formula zinc sulfate
a)
ZnSO3
b)
ZnSO4
c)
ZnS
d)
Zn(SO4)2
24.
In most cases, when naming you change the ending of the second element to ________.
a)
-ate.
b)
-ite.
c)
-ide.
d)
-ine.
25.
MgF2
a)
magnesium fluoride
b)
manganese Phosphide
c)
magnesium(III) fluoride
d)
magnesium fluoride(II)
26.
Carbon dioxide
a)
C2O2
b)
C20
c)
CO
d)
CO2
27.
Phosphorous trichloride
a)
PCl3
b)
P3Cl
c)
PCL
28.
Disulfur trioxide
a)
S3O2
b)
SO
c)
S2O3
d)
S2O
29.
P2O5
a)
Phosphorus Oxide
b)
Pentaphosphorus Dioxide
c)
Diphosphorous pentoxide
d)
Phosphoric Oxygen
30.
CO
a)
Carbon Oxide
b)
Carbon Oxygen
c)
Dicarbon dioxide
d)
Carbon Monoxide
31.
PBr5
a)
Phosphorus Bromide
b)
Phosphorus Pentabromide
c)
Pentaphosphorus bromide
d)
Phosphorus Bromine
32.
What is the name of Ca(NO3)2
a)
calcium nitrite
b)
calcium II nitrate
c)
calcium nitrate
d)
carbon nitrate
33.
An ionic compound made of copper (Cu2+) and oxygen would be named
a)
copper oxygen.
b)
copper oxide.
c)
dicopper oxide.
d)
copper(II) oxide.
34.
zinc sulfate
a)
ZnSO3
b)
ZnSO4
c)
ZnS
d)
Zn(SO4)2
35.
iron(II) oxide
a)
FeO
b)
FeO2
c)
Fe2O
d)
Fe2O2
36.
AlBr3
a)
aluminum bromide
b)
aluminum tribromide
c)
aluminum bromine
d)
monoaluminum tribromide
37.
Fe(NO3)2
a)
iron nitrate
b)
iron dinitrate
c)
iron(II) nitrate
d)
iron(I) nitrate
38.
Ba3(PO4)2
a)
tribarium diphosphate
b)
barium diphosphate
c)
barium phosphate
d)
barium phosphide
39.
Which one of the following would you use to separate sand from iron filings?
a)
a bar magnet
b)
filter paper
c)
chromatography paper
d)
alum
40.
Which of the following pairs of substances may best be separated through distillation
a)
 sand and soil
b)
water and soil
c)
salt and sand
d)
 water and alcohol
41.

Name the method of separation

a)

Fractional distillation

b)

Chromatography

c)

Condensation

d)

Evaporation

42.
A separation technique which uses a fractionating column to separate different liquid components in a mixture with different boiling points by heating mixture is called
a)
Fractional distillation
b)
filtration
c)
crystallization
d)
evaporation
43.
Separating mixtures based on boiling points.
a)
Desalination
b)
Distillation
c)
Decantation
d)
Condensation
44.
Distillation uses two changes of state. what are they?
a)
Evaporation and condensation
b)
Evaporation and freezing
c)
melting and boiling
d)
sublimation and condensation
45.

This diagram represents...

a)

An element

b)

A molecule

c)

A compound

d)

A mixture of elements and compounds

46.
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds
47.
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds
48.
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds and elements
49.
a)
element
b)
compound
c)
mixture of elements and compounds
d)
mixture of compounds
50.
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds
51.

Fractional distillation separates crude oil based on the different __________ of the molecules in the mixture

a)

melting point

b)

boiling point

c)

freezing point

d)

chemical reactivity

52.
Water and alcohol are easily separated by distillation because of their
a)
different densities
b)
different boiling points
c)
different colours
d)
different melting points
53.

Which of the following pairs of substances may best be separated through through fractional distillation

a)

sand and soil

b)

water and soil

c)

salt and sand

d)

water and alcohol

54.

Label part 1

a)

Thermometer

b)

Fractionating column

c)

condenser

55.

Label 5

a)

Water in

b)

water out

c)

condenser

d)

fractionating column

56.

Label 3

a)

Beaker

b)

Conical Flask

c)

Boiling tube

d)

rounded bottom flask

57.
What is a mixture?
a)
elements chemically combined
b)
a combination of different things
c)
it is found on the Periodic Table 
d)
it is made of chemical
58.
What does it mean if a mixture is heterogeneous?
a)
you can see the different parts
b)
cannot tell one part from another
c)
very well blended
d)
made of elements
59.
What type of mixture is this?
a)
heterogeneous 
b)
homogeneous
60.
To separate the sugar and lemonade what method should you use?
a)
filtration 
b)
sorting
c)
magnet
d)
boiling
61.
To separate trail mix what method should you use?
a)
filtration 
b)
sorting
c)
magnet
d)
boiling
62.
To separate iron filings and sulfur what method should you use?
a)
filtration 
b)
sorting
c)
magnet
d)
boiling
63.
What is the measure of how much a substance dissolves in a given volume?
a)
atom
b)
element
c)
solububble
d)
solubility 
64.
Which mixture separation method would work with picking up nails?
a)
filtration 
b)
magnet
c)
boiling/evaporation
d)
sorting physically
65.
Which mixture separation method would use to separate sugar from water?
a)
filtration 
b)
magnet
c)
boiling/evaporation
d)
sorting physically
66.
Elements and compounds are always ___.
a)
pure
b)
mixed
67.
Mixtures are always ___.
a)
pure
b)
mixed
68.
Which list is made of mixtures?
a)
soil, water, soup
b)
carbon dioxide, soil, soup
c)
salt, water, air
d)
atoms, cereal, pizza
69.
What happens when you mix dirt and water?
a)
The dirt will float on top of the water.
b)
The dirt will settle to the bottom.
c)
The dirt will dissolve.
d)
The water will begin to bubble.
70.

A student mixes 125 grams of sugar, 250 grams of water and 5 grams of flavoring. The solution weighs...

a)

250 grams

b)

380 grams

c)

375 grams

d)

400 grams

71.
Matter can not be created nor destroyed: it can only be
a)
Destroyed a little bit
b)
Invisible
c)
Transformed, changed
d)
None of the above
72.
Which of these is not a chemical reaction?
a)
Burning of wood
b)
Milk going bad
c)
Mixing vinegar and baking soda
d)
Melting of ice
73.
A precipitate is a 
a)
liquid that forms when two solids are reacted
b)
a solid that forms when two liquids are mixed
c)
a gas that forms when vinegar and baking soda react
d)
a change of color in a solution
74.
If reaction starts with 20g of reactants it should produce 
a)
a total of 40g of products
b)
a total of 10g of products
c)
a total of 80 g of products
d)
a total of 20g of products
75.
What will weigh more when a chemical change is complete?  The reactants before the chemical reaction, or the product after the reaction is complete?
a)
They both will weigh the same
b)
The product always weighs more than the reactant
c)
The reactant will weigh more than the product
d)
They both will loose mass after the reaction
76.
Jamie weighs a glass of water and observes its weight to be 12 ounces. Jamie then adds 6 ice cubes to the glass of water. Each ice cube weighs one ounce. After all of the ice cubes have melted, what will be theapproximate weight of the glass of water?
a)
6 
b)
12 
c)
18 ounces
77.

What do we call the chemicals that result from a chemical reaction?

a)

reactants

b)

products

c)

subscripts

d)

coefficients

78.

According to the Law of Conservation of Mass, what happens to the wood and oxygen when it is burned?

a)

The wood disappears.

b)

It stays the same chemically.

c)

The atoms in the wood and oxygen rearrange and form smoke and ash.

d)

Nothing.

79.

________ are the starting substances in a chemical equation.

a)

Reactants

b)

Producer

c)

Reaction

d)

Products

80.

The law of conservation of mass states that ________

a)

the total mass of reactants is more than the total mass of products

b)

the mass of a chemical reaction is not constant

c)

the mass of a chemical reaction remains constant

d)

the total mass of reactants is less than the total mass of products

81.

The Law of Conservation of Mass States

a)

Energy cannot be created nor destroyed, it can only change form.

b)

Mass cannot be created nor destroyed, it can only change form.

c)

Mass can be created or destroyed, it cannot change form.

82.
Measure of the amount of matter 
a)
mass
b)
volume
c)
weight
d)
density
83.
Measure of the amount of matter 
a)
mass
b)
volume
c)
weight
d)
density
84.
Anything that has mass & takes up space
a)
gravity
b)
force
c)
matter
d)
volume
85.
Smallest unit of an element
a)
compound
b)
atom
c)
molecule
d)
product
86.
Smallest unit of a compound
a)
atom
b)
density
c)
element
d)
molecule
87.
Substance that cannot be broken into simpler substances
a)
element
b)
molecule
c)
gram
d)
proton
88.
Substance made up of chemically combined elements
a)
atom
b)
element
c)
electron
d)
compound
89.
Highly reactive metals in first column of periodic table
a)
halogens
b)
noble gases
c)
alkali metals
d)
metalloids
90.
Substances that form as the result of a chemical reaction
a)
products
b)
reactants
c)
coefficients
d)
subscripts
91.
Substances present at the start of a chemical reaction
a)
subscripts
b)
coefficients
c)
reactants
d)
products
92.
How many iron atoms are in 
Fe(NO3)2
a)
1
b)
2
c)
3
d)
6
93.
How many nitrogen atoms are in 
Fe(NO3)2
a)
1
b)
2
c)
3
d)
6
94.
How many oxygen atoms are in 
Fe(NO3)2
a)
1
b)
2
c)
3
d)
6
95.
Which is an example of a solute?
a)
Egg whites
b)
Sugar
c)
Water
d)
Acetone
96.
Which is an example of a solvent?
a)
Salt
b)
Egg whites
c)
Water
d)
Sugar
97.

What is a solvent

a)

A liquid that will dissolve a solid solute

b)

Another word for solution

c)

A thing that make drinks change colour

d)

Usually the solid about to be dissolved

98.

The ___ is the thing being dissolved.

a)

solute

b)

solvent

c)

mixture

d)

solution

99.

The substance being dissolved in a solution is the?

a)

solution

b)

solute

c)

solvent

d)

mixture

100.
If I dissolve sugar in water, what is the solute?
a)
Water
b)
Hydrogen
c)
Sugar
d)
Carbon
101.

If I dissolve carbon dioxide in water, what is the solvent?

a)

Carbon Dioxide

b)

There is no solvent

c)

Oxygen

d)

Water

102.

If I dissolve salt in water, what is the solvent?

a)

salt

b)

water

c)

salt & water

d)

none of the above

103.

If I dissolve salt in water, what is the solute?

a)

water

b)

salty water

c)

none of the above

d)

salt

104.

Define the term soluble.

a)

Can dissolve in water

b)

Cannot dissolve in water

c)

Partially dissolves in water

105.

Define the term insoluble.

a)

Can dissolve in water.

b)

Cannot dissolve in water.

c)

Partially dissolves in water.

106.
The amount of solute actually dissolved in a given amount of solvent.
a)
dilution
b)
concentration
c)
saturated solution
d)
supersaturated mixture
107.
When a solvent contains as much of the solute as it can hold, the solution is said to be
a)
supersaturated
b)
diluted
c)
saturated
d)
unsaturated
108.
How does a solution become supersaturated?
a)
dissolve lots of solute in it.
b)
dissolve a little solute in it. 
c)
dissolve more solute than you should be able to. 
d)
dissolve a super amount of solvent in it. 
109.
__________ are made up of solutes and solvents.
a)
Solutions
b)
Suspensions
c)
Heterogeneous Mixtures
d)
Pure Substances
110.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
111.
Is glass breaking a chemical or phyiscal change?
a)
chemical
b)
physical
112.
Is a a rusting bicycle a chemical or physical change?
a)
chemcial
b)
physical
113.
Is melting ice a chemical or physical change?
a)
chemical
b)
physical
114.
Is frying an egg a physical or chemical change?
a)
chemical
b)
physical
115.
Salt dissolves in water
a)
physical Change
b)
chemical change
116.
Which is a chemical change?
a)
freezing fruit juice
b)
slicing a potato
c)
boiling water
d)
copper metal turning green
117.
what is the definition of physical change?
a)
any change that results in the formation of new chemical substances. 
b)
rusting
c)
changes affecting the form of a chemical substance, but not its chemical composition.
d)
any property that is measurable, whose value describes a state of a physical system
118.

What is physical change?

a)

How two chemicals react with one another when combined

b)

A property that we can measure or observe with our 5 senses or other tools

c)

When two chemicals react with one another to form a new substance

d)

When a change occurs but it does not result in the formation of a new substance

119.

What is chemical change?

a)

How two chemicals react with one another when combined

b)

A property that we can measure or observe with our 5 senses or other tools

c)

When two chemicals react with one another to form a new substance

d)

When a change occurs but it does not result in the formation of a new substance

120.

When you increase the energy by heating a liquid what happens to the motion of the molecules

a)

They slow down

b)

They speed up

c)

Heat doesnt change the motion of the molecules

121.

Which of the following is an indication of chemical change

a)

Melting

b)

Freezing

c)

Burning

d)

Evaporating

122.

What do we call the molecules that are present at the end of a chemical reaction?

a)

Reactants

b)

Products

c)

Ingredients

d)

Atoms

123.

Thermal energy (heat) is released or absorbed during the reaction explains the _________________

a)

Change in color

b)

Change in temperature

c)

Change in gas

124.
A student heat glass and bending it. This is an example of….
a)
chemistry change
b)
physical change
c)
chemistry state
d)
physical state
125.
All of the following changes to a nail are physical changes, except….
a)
bending
b)
cutting
c)
rusting
d)
polishing
126.
All of the following changes to a substances are chemical changes, except….
a)
melting
b)
fermenting
c)
reacting
d)
burning
127.
Which of the following cannot be classified as physical changes?
a)
burning
b)
boiling
c)
melting
d)
cutting
128.
When something burns, it reacts with….in the air.
a)
nitrogen
b)
halogen
c)
glucogen
d)
oxygen
129.
Inside your digestive system, protein molecules are broken down to amino acid molecules. A chemical change has taken place. Which of the following is not property of chemical change?
a)
reversible
b)
irreversible
c)
new substances are formed
d)
changes in the molecular structur
130.
A chemical reaction that happens in a plant but not in animal is….
a)
respiration
b)
fermentation
c)
decaying
d)
photosynthesis
131.
Fire explosion is an example of….
a)
physical change
b)
physical distancing
c)
chemical change
d)
chemical
132.
Fertilizer produced by leaves decaying. This phenomenon is….
a)
physical state
b)
physical change
c)
chemical state
d)
chemical change
133.

What element rusts?

a)

carbon

b)

manganese

c)

iron

d)

potassium

134.

What environmental element assists rusting?

a)

nitrogen

b)

oxygen

c)

carbon

d)

hydrogen

135.

A rusting bicycle

a)

physical change

b)

chemical change

136.

What conditions are required for rusting?

a)

dry cold conditions

b)

dry hot conditions

c)

hot damp conditions

137.

Rusting is an example of

a)

oxidation

b)

reduction

138.

What two things cause Iron to Rust ?

a)

Air and Oxygen

b)

Water and Carbon dioxide

c)

Oxygen and Water

d)

Carbon dioxide and Air

139.

What is the chemical name given to Rust ?

a)

Iron dioxide

b)

Iron oxide

c)

Steel oxide

d)

Carbon dioxide

140.

What prevents Rusting

a)

Painting , Oiling , Galvinising

b)

Washing with water

141.

Raising the temperature of a chemical reaction would make the reaction __________________.

a)

happen slower

b)

stop completely

c)

happen faster

d)

proceed as normal

142.
Which type of metal doesn't rust at all?
a)
steel
b)
iron
c)
copper
143.
How are metal oxides formed?
a)
When metals react with oxide.
b)
When metals react with water.
c)
When metals react with air.
d)
When metals react with oxygen.
144.
When metals are extracted from ores, a __________ reaction is used.
a)
oxidation.
b)
reduction.
c)
extraction
d)
mining
145.

In which tube will the nail go rusty?

a)

The nail in tube A will go rusty.

b)

The nail in tube B will go rusty.

c)

The nail in tube C will go rusty.

146.
Which of these is NOT a sign that a chemical change has occurred? 
a)
Change in shape.
b)
An unexpected color change
c)
A temperature change
d)
The formation of a precipitate
147.

You know that a chemical reaction has occurred if

a)

there is a precipitate (new solid)

b)

there is a color change.

c)

there is a temperature change.

d)

All of these answers are evidence.

148.
What indicates a chemical reaction occurred?
a)
Heat or Light is released
heat or light is produced
b)
gas (bubbles) produced
c)
color change
d)
all of the above
149.

A chemical change is different than a physical change because in a chemical change

a)

chemicals are used

b)

molecules do not physically touch

c)

a new substance is formed and in a physical no new substance is formed

d)

the change can be seen but in a physical change it cannot

150.
Which of the following is NOT evidence that that a chemical reaction has occurred?
a)
produces light/heat
b)
production of a gas
c)
formation of a precipitate
d)
melting
151.

Complete the word equations.

copper oxide + sulfuric acid →

(black)

a)

copper sulfate + water

(precipitate)

b)

copper sulfate + water

(blue)

c)

copper sulfate + water

(white)

d)

copper sulfate + water

(green)

152.

Complete the word equations.

magnesium + hydrochloric acid →

a)

magnesium chloride + hydrogen

b)

magnesium chloride

c)

magnesium chloride + water

d)

magnesium chloride + carbon dioxide

153.

When potassium is placed in water, hydrogen has given off. The reaction produced

a)

an alkali

b)

a precipitate

c)

so much heat

d)

a blue solution

154.

Which of the following is an example of a chemical change?

a)

water freezes to form ice

b)

sugar dissolves in water

c)

gasoline burns in a car engine

d)

a piece of metal expands when it is heated

155.
Which of the following is an example of a chemical change?
a)
rusting of a bicycle
b)
painting a house
c)
washing a dog
d)
tearing up a newspaper
156.

Marble Chips in Hydrochloric Acid makes a gas that turns lime water cloudy. What is the name of the gas?

a)

Hydrogen

b)

Oxygen

c)

Carbon Dioxide

157.
5. How do you test for Carbon Dioxide gas?
a)
a) Lime water goes milky/cloudy
b)
b) Relights a glowing splint
c)
c) Lighted splint gives a squeaky pop.
d)
d) Bleaches damp indicator paper.
158.
7. How do you test for Hydrogen gas?
a)
a) Lime water goes milky/cloudy
b)
b) Relights a glowing splint
c)
c) Lighted splint gives a squeaky pop.
d)
d) Bleaches damp indicator paper.
159.
Metals that react quickly/strongly with water and acids are called?
a)
Reactive
b)
Unreactive
c)
Dangerous
d)
Corrosive
160.
How can you tell that a metal is reacting with water?
a)
Colour change
b)
Bright light
c)
Fizzing
d)
It gets colder
161.
How can you test to show that when a metal reacts with water, hydrogen gas is produced?
a)
Relights a glowing splint
b)
A lit splint produces a squeaky pop
c)
Puts out a burning splint
d)
Is cold to the touch
162.
What metal hydroxide is produced when magnesium reacts with water?
a)
Copper hydroxide
b)
Magnesium oxide
c)
Magnesium
d)
Magnesium hydroxide
163.
What gas is produced when sodium reacts with water?
a)
Hydrogen
b)
Carbon dioxide
c)
Carbon monoxide
d)
Water vapour
164.
What gas is produced when a metal reacts with an acid?
a)
Water vapour
b)
Acidic gas
c)
Hydrogen
d)
Nitrogen
165.
Which salt will be produced if magnesium react with hydrochloric acid?
a)
Magnesium oxide
b)
Magnesium sulfate
c)
Magnesium sulfide
d)
Magnesium chloride
166.
An acid reacts with metal to produce 
a)
Carbon dioxide 
b)
Hydrogen gas
c)
Hydrogen gas and water 
d)
Salt and hydrogen gas 
167.
What type of reaction is the following: 
HCl  + Zn --> ZnCl2 + H2
a)
Neutralisation
b)
Acid and a metal 
c)
Acid and a carbonate 
d)
Ionic 
168.
When magnesium reacts with copper sulphate, there are two products. What are they?
a)
Magnesium  and Copper
b)
Magnesium Sulphate and Copper
c)
Magnesium Sulphate and Copper Sulphate
d)
Magnesium and Copper Sulphate
169.

If potassium reacts with water what are the 2 products of the reaction?

a)

potassium hydroxide + oxygen

b)

potassium hydroxide + hydrogen

c)

potassium + hydrogen oxide

d)

Potassium hydroxide + hydrogen oxide

170.

Copper metals react with water and forms ____ and ____

a)

oxide and hydrogen gas

b)

Hydroxide and hydrogen gas

c)

carbonates and hydrogen gas

d)

No reaction

171.

A student added dilute hydrochloric acid to four metals and recorded his results. Which is correct

a)

No reaction with zinc

b)

Gas given off with copper

c)

Gas given off with magnesium

d)

No reaction with iron

172.

Which statement is correct about all metals?

a)

They are attracted to a magnet.

b)

They are good conductors of heat and electricity.

c)

They react with acid.

d)

They react with water.

173.

Which statement is correct about all metals?

a)

They are attracted to a magnet.

b)

They are weak and brittle.

c)

They may be used to form alloys.

d)

They react with water.

174.

The following statements are about alloys.

• Alloys are …X…. .

a)

mixtures

b)

compounds

175.

Which of the following metals do not react with acid?

a)

copper

b)

silver

c)

gold

d)

magnesium

176.
a)

A

b)

B

c)

C

d)

D

177.

Metals and acids react to form .....

a)

Salt and hydrogen

b)

Salt and water

c)

Carbon dioxide, salt and water

d)

Hydrogen only

178.

Magnesium + hydrochloric acid-->

a)

Magnesium chloride + water

b)

Magnesium chloride + hydrogen

c)

Magnesium hydrochloride + hydrogen

d)

Magnesium chloride + water + carbon dioxide

179.

Zinc + sulfuric acid -->

a)

Zinc sulfide + hydrogen

b)

Zinc sulfate + hydrogen

c)

Zinc sulfate + Water +Carbon dioxide

d)

Zinc sulfide + water

180.

Iron + hydrochloric acid -->

a)

Iron chloride + hydrogen

b)

Iron chloride + carbondioxide

c)

Iron hydroxide + acid

d)

Iron chloric + hydrogen

181.

What are the reactants for the reaction of magnesium with oxygen

Magnesium + oxygen --> Magnesium oxide

a)

Magnesium

b)

Oxygen

c)

Magnesium oxide

d)

Magnesium and oxygen

182.

How do we test for hydrogen?

a)

Squeaky pop test

b)

Hydrogen extinguishes a lit splint

c)

Bubbling through lime water

d)

Hydrogen makes a glowing splint relight

183.

Metal carbonates react with acid to form....

a)

Salt, carboxylic acid and water

b)

Salt, carbon dioxide and water

c)

Salt and carbonated water

d)

Salt and hydrogen

184.

Calcium carbonate + hydrochloric acid -->

a)

Calcium chloride + hydrogen

b)

Calcium choride + water

c)

Calcium chloride + carbon dioxide + water

d)

Calcium sulfate + carbon dioxide + water

185.

Copper carbonate + hydrochloric acid -->

a)

Copper chloride + hydrogen

b)

Copper chloride + water

c)

Copper chloride + water + hydrogen

d)

Copper chloride + water + carbondioxide

186.

According to pH scale, indicator will turn red if a solution is...

a)

Acidic

b)

Alkali

c)

Neutral

d)

Precipitate

187.

The two tests for carbon dioxide are ...

a)

It will extinguish a lit splint

b)

It will cause a squeaky pop

c)

It will explode

d)

When bubbled through lime water it turns the water cloudy

188.

Which salt will e produced if copper carbonate react with hydrochloric acid....

a)

Copper carbonate

b)

Copper chloride

c)

Water

d)

Carbon dioxide

189.

What gas is always produced when a metal reacts with acid?

a)

Oxygen

b)

Hydrogen

c)

Carbon dioxide

d)

Nitrogen

190.

What gas is always produced when carbonates reacts with acids?

a)

Oxygen

b)

Hydrogen

c)

Carbon dioxide

d)

Nitrogen

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