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Grade 6 states of matter and chemical reactions

Total questions: 25

Worksheet time: 17mins

Name
Class
Date
1.
A molecule is smaller than an atom.
a)
True
b)
False
2.
How many Hydrogen (H) atoms are in NH3O5
a)
3
b)
4
c)
5
d)
1
3.
A molecule is________
a)
a glob of gelatinous goo
b)
smaller than an atom
c)
filled with raisons
d)
more than one atom bonded together
4.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
5.
Which of the following occurs when a liquid becomes a gas?
a)
The particles slow down
b)
The particles move further away from each other
c)
The particles move closer together
d)
The particles dissolve
6.
What happens when my glass of water is sitting in the sun and disappears into a gas?
a)
evaporation
b)
burning
c)
melting
d)
freezing
7.
Is the equation balanced?: 2H2O + O2 --> 4MgO + 3Fe
a)
Yes
b)
No
8.
Balance this equation:
MgCl2 --> Mg4+ Cl2
a)
It's already balanced.
b)
4MgCl2 --> Mg4+ 4Cl2
c)
4MgCl2 --> Mg4+ 5Cl2
9.
Balance this equation:
 2Li + Cl2 -> LiCl
a)
2Li + Cl2 -> 4LiCl2
b)
2Li + Cl2 -> LiCl2
c)
2Li + Cl2 -> 2LiCl
10.

The substance that does the dissolving

a)

Solute

b)

Solvent

c)

Solution

d)

Miscibility

11.

The substance getting dissolved

a)

Solvent

b)

Solute

c)

Solution

d)

Mixture

12.
Which substance is SOLUBLE in water?
a)
sand
b)
oil
c)
salt (sodium chloride)
d)
sulfur
13.
Which substance is INSOLUBLE in water?
a)
salt (sodium chloride)
b)
sugar (sucrose)
c)
oil
d)
copper sulfate
14.
Solubility is defined as
a)
the ability to catch on fire
b)
the ability to be dissolved
c)
the ability to fly.
d)
the ability to get on Mrs. D's nerves.
15.

In a sample of seawater, the solvent is:

a)

water

b)

sea

c)

salt

d)

air

16.

If I want more sugar to dissolve in water, I should heat the water

a)

true

b)

false

17.

If I want more sugar to dissolve in water, I should stir the water

a)

true

b)

false

18.
Dyes in water soluble markers may be separated by means of..
a)
crystallization
b)
sublimation
c)
chromatography
d)
sedimentation
19.

The separation technique being used is

a)

Decanting

b)

Filtering

c)

Evaporation

d)

Distillation

20.

What is the name of the process shown in the diagram

a)

Chromatography

b)

Evaporation

c)

Distillation

d)

Filtration

21.

When metals react with hydrochloric acid what gas is produced?

a)

Oxygen

b)

Hydrogen

c)

Carbon dioxide

d)

Chlorine

22.

When metal carbonates react with hydrochloric acid what gas is produced?

a)

Oxygen

b)

Hydrogen

c)

Carbon dioxide

d)

Chlorine

23.

What is the chemical symbol for Lithium?

a)

Li

b)

K

c)

Na

d)

L

24.

What is the chemical symbol for Sodium?

a)

S

b)

K

c)

Na

d)

N

25.

What is the chemical symbol for Potassium?

a)

S

b)

K

c)

Na

d)

P

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