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Y11 Chemistry M1 review

Total questions: 23

Worksheet time: 12mins

Name
Class
Date
1.

Oil and water

a)

Homogeneous Mixture

b)

Heterogeneous Mixture

2.

Air

a)

Homogeneous Mixture

b)

Heterogeneous Mixture

3.

Chocolate

a)

Homogeneous Mixture

b)

Heterogeneous Mixture

4.

Cereal

a)

Homogeneous Mixture

b)

Heterogeneous Mixture

5.

Which of the following formulas is the correct for the Sodium Chloride?

a)

NaCl2

b)

NaCl

c)

KCl

d)

Na2Cl

6.

Which is the valence of aluminum.

a)

+2

b)

+1

c)

+3

d)

-3

7.

What is the correct formula of phosphorus trichloride?

a)

P2Cl3

b)

P3Cl3

c)

PCl3

d)

PCl5

8.

Color is what type of property?

a)

Physical

b)

Chemical

9.

Reactivity is what type of property?

a)

Physical

b)

Chemical

10.
Fluorine has an atomic number of 9. What can you conclude about an atom of fluorine from this fact?
a)
it has 9 protons
b)
it weighs 9 grams
c)
it has 9 electron shells
d)
it has a boiling point of 9 degree celsius
11.
In what part of an atom can protons be found?
a)
inside the electron
b)
inside the neutron
c)
inside the atomic nucleus
d)
inside the electron shells
12.
If a sulfur atom has 16 protons, 16 electrons, and 16 neutrons, its atomic mass is:
a)
16
b)
32
c)
48
d)
64
13.
If a hydrogen atom has 1 proton, 1 electron, and 1 neutron, its atomic number is:
a)
1
b)
2
c)
3
d)
4
14.
How is carbon-12 different from carbon-14?
a)
They have a different number of protons
b)
they have a different number of electrons
c)
they have a different number of neutrons
d)
they are different elements
15.

Which of the following is the positively charged particle that is found in the nucleus of an atom?

a)

proton

b)

neutron

c)

electron

d)

nucleus

16.

Which of the following is the neutral particle found in the nucleus of an atom?

a)

proton

b)

neutron

c)

electron

d)

nucleus

17.

When an atom gains or loses an electron, the atom is called a(n)

a)

electron

b)

ion

c)

particle

d)

nucleus

18.

The rings around the nucleus of an atom are

a)

target rings

b)

sound waves

c)

energy levels

19.

What happens when energy is added to an atom?

a)

The electrons "jump" to the an energy level that is closer to the nucleus.

b)

The electrons "jump" to the next energy level away from the nucleus.

c)

The atom explodes!

20.

A purple color of light was seen when this element was heated in the flame.

a)

sodium

b)

barium

c)

potassium

d)

copper

21.

A yellow flame in a flame test is

a)

Lithium

b)

Sodium

c)

Potassium

d)

Calcium

22.

Metals ions have a

a)

Positive charge

b)

Negative charge

23.

Gamma rays are stopped by

a)

A thin sheet of aluminium

b)

Skin

c)

A thick sheet of cardboard

d)

A thick sheet of lead

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