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SNC2D Chemistry Quiz 1 Practice

Total questions: 66

Worksheet time: 2hrs 10mins

Name
Class
Date
1.

Which of the following options provides evidence of a CHEMICAL change?

a)

Wood is burned releasing ash and smoke

b)

Rocks separate when soil is sifted

c)

Water turns to ice when you put it in the freezer

d)

Salt dissolves in water

2.

Which of the following examples provides evidence of a PHYSICAL change?

a)

Wood is burned and releases ash and smoke

b)

Iron rusts over time

c)

When mixed, baking soda and vinegar form gas bubbles

d)

A piece of paper changes shape when you rip it up

3.

Which observations prove a chemical change has occurred?

a)

Dissolving and expected color change

b)

Mixing and dissolving

c)

State of matter change and boiling water bubbles

d)

Unexpected color change and temperature change

4.

When mixing milk and vinegar, a white, chunky, solid substance is formed. What has occurred?

a)

Physical change: state of matter

b)

Chemical change: production of a solid

c)

Physical change: freezing

d)

Chemical change: rust

5.
What is the tiny, massive central part of the atom?
a)
Neutron
b)
Electron
c)
Proton
d)
Nucleus
6.
How many electrons does potassium K contain? 
a)
19
b)
39
c)
20
d)
40
7.
What's a valence electron?
a)
electrons in the second energy level
b)
electrons in the outermost energy level
c)
the atomic number
d)
electrons in the first level
8.
What is the atomic number of this atom?
a)
2
b)
4
c)
6
d)
none of the above
9.

What is the charge of an ion with 11 protons and 10 electrons?

a)

+1+1

b)

−1-1

c)

+2+2

d)

−2-2

10.

How many valence electrons does a chlorine atom have?

a)

5

b)

6

c)

7

d)

8

11.

What is the main goal for an atom when it forms a compound?

a)

To lose all of its electrons

b)

To gain more protons

c)

To achieve a full valence shell

d)

To become a noble gas

12.

Which of the following statements about anions is true?

(Click the image to make it bigger)

a)

Anions are positively charged ions.

b)

Anions have more protons than electrons.

c)

Anions are negatively charged ions.

d)

Anions cannot form compounds.

13.

How does the number of protons in an ion compare to the number of protons in a neutral atom of the same element?

a)

The number of protons is less in an ion.

b)

The number of protons is more in an ion.

c)

The number of protons is the same in both an ion and a neutral atom.

d)

The number of protons varies unpredictably in an ion.

14.

In a neutral atom, the number of protons is 15. How many electrons does its corresponding anion with a −3-3 charge have?

a)

12

b)

15

c)

18

d)

20

15.

What's the charge of an aluminum ion?

a)

2-

b)

3-

c)

3+

d)

1+

e)

2+

16.
An atom becomes _______ when it loses electrons.
a)
Positive
b)
Negative
c)
Neutral
d)
Invinsible
17.
Elements on the LEFT side of the periodic table will most likely form:
a)
Positive ions
b)
Negative ions
c)
Neutral Ions
d)
None of these
18.

charge of beryllium ion

a)

-2

b)

-1

c)

+1

d)

+2

19.

Which of the following has a -3 charge?

a)

Boron

b)

Fluorine

c)

Nitrogen

d)

Neon

20.
a)
2
b)
8
c)
3
d)
13
21.

How many valence electrons does carbon have?

a)

4

b)

5

c)

6

d)

7

22.

USE THE PERIODIC TABLE

How many valence electrons does Phosphorus have?

a)

31

b)

5

c)

15

d)

4

23.

Do you think Calcium will gain or lose valence electrons?

a)

Gain

b)

Lose

24.

Do you think Fluorine will gain or lose valence electrons?

a)

Gain

b)

Lose

25.

Do you think Sodium will gain or lose valence electrons?

a)

Gain

b)

Lose

26.

Do you think Sulfur will gain or lose valence electrons?

a)

Gain

b)

Lose

27.
Elements in the same column of the periodic table always have the same # of _______ as one another.
a)
Protons
b)
Neutrons
c)
Electrons
d)
Valence Electrons
28.
Formed when positively charged metal ions attract negatively charged non-metal ions.
a)
ionic compounds
b)
molecular compounds
29.
Formed when a non-metal shares electrons with another non-metal.
a)
ionic compound
b)
molecular compound
30.
Which of the following forms an ionic compound?
a)
a metal and another metal
b)
a non-metal and another non-metal
c)
a metal and a non-metal
d)
a covalent bond
31.
NaCl is a(n) 
a)
ionic compound
b)
molecular compound
32.
MgO is a(n)
a)
ionic compound
b)
molecular compound
33.
CH4 is a(n)
a)
ionic compound
b)
molecular compound
34.
Which of the following is an ionic compound?
a)
CCl4
b)
CO
c)
MgO
d)
CH4
35.
PH3 is a(n)
a)
ionic compound
b)
molecular compound
36.
MgCl2
a)
Ionic
b)
Covalent
c)
Polyatomic Ion
d)
Metallic 
37.

Classify ionic or molecular

LiOH

a)

Ionic

b)

Molecular

38.
What is the name of NH4Cl?
a)
nitrogen tetrahydrogen chloride
b)
ammonium chlorine
c)
ammonium chloride
d)
ammonium chlorate
39.
What is the name of Al(NO3)3?
a)
Aluminum trinitrate
b)
Monoaluminum nitrate
c)
Aluminum (III) nitrate
d)
Aluminum Nitrate
40.

What is the name of AlPO4?

a)

Aluminum phosphoxie

b)

Monoaluminum tetraphosphate

c)

Aluminum (III) phosphate

d)

Aluminum phosphate

41.
What's the name of the compound NH4NO3 ?
a)
nitrogen hydrogen oxygen
b)
ammonium nitrite
c)
nitrogenous water
d)
ammonium nitrate
42.
Name the following ionic compound: MgSO4
a)
magnesium sulfoxide
b)
magnesium sulfide
c)
magnesium sulfate
d)
magnesium oxide
43.
What is the name of Mg(OH)2?
a)
Magnesium Hydride
b)
Magnesium Dihydride
c)
Magnesium Dihydroxide
d)
Magnesium Hydroxide
44.
What is the formula for copper(I) sulfate?
a)
CuSO3
b)
CuSO4
c)
Cu2SO3
d)
Cu2SO4
45.
phosphorus trichloride
a)
KCl3
b)
PCl3
c)
K3Cl
d)
P3Cl
46.
The chemical formula of sulfur hexabromide is
a)
SBr₆
b)
S₆Br
c)
S(VI)Br
d)
S6Br
47.
The name of P₄S₁₀ is
a)
phosphorous sulfide
b)
phosphorus sulfide
c)
tetraphosphorus decasulfide
d)
phosphorus (X) sulfide
48.
The chemical formula of dinitrogen textroxide is
a)
Ni₂O₄
b)
NiO
c)
N₂O₄
d)
NiO₂
49.

In the equation shown, what are the reactant(s)?

a)

N2 + H2

b)

NH3

50.

In the equation shown, what are the product(s)?

a)

N2 + H2

b)

NH3

51.

What is the left part of a chemical equation called?

2H2 + O2 ---> 2H2O

a)

Reactants

b)

Yields

c)

Products

d)

Chemical equation

52.

What is the right part of a chemical equation called?

2H2 + O2 ---> 2H2O

a)

Reactants

b)

Yields

c)

Products

d)

Chemical Equation

53.

C2H6 + 5O2 → 2CO2 + 3H2O2C_2H_6\ +\ 5O_2\ \rightarrow\ 2CO_2\ +\ 3H_2O_2  
Given this chemical equation, what are the REACTANTS?

a)

C2H6 and 5O2C_2H_{6\ }and\ 5O_2  

b)

2CO2 and 3H2O22CO_2\ and\ 3H_2O_2  

54.

The products in this reaction are?

a)

Two solids

b)

One solid and one gas

c)

Three solids and a gas

d)

Two solids and a gas

55.

"When heated, solid mercury(II) oxide decomposes into mercury liquid and oxygen gas." What is the correct formula and physical state for mercury(II) oxide?

a)

Hg2O (s)

b)

HgO (l)

c)

HgO (s)

56.

"Water and sulfur trioxide vapor combine to form sulfuric acid (or hydrogen sulfate solution)." What is/are the reactant(s)?

a)

water

b)

sulfur

c)

sulfur trioxide

d)

hydrogen sulfate

57.

"Solid zinc oxide is produced by combining zinc powder with oxygen gas." What is/are the product(s)?

a)

zinc oxide

b)

zinc

c)

oxygen

58.

What are the 7 elements are always found as diatomics (two bonded together, like X2) when they are in their pure form (not part of a compound)?

a)

Br, I, N, Cl, H, O, F

b)

B, I, N, C, H, O, F

c)

B, R, O, F, In, C, H

d)

Br, I, Ni, C, Ho, F

59.

"Solid zinc oxide is produced by combining zinc powder with oxygen gas." What is the correct skeleton equation for this reaction?

a)

ZnO (s) --> Zn (s) + O2 (g)

b)

ZnO (s) --> Zn + O (g)

c)

Zn (s) + O2 (g) --> ZnO (s)

d)

Zn + O --> ZnO

60.

"Water and sulfur trioxide vapor combine to form sulfuric acid (or hydrogen sulfate solution)." Which is the correct skeleton equation?

a)

H2SO4 (s) --> H2O (l) + S3O (g)

b)

H2O (aq) + SO3 (g) --> H2SO4 (s)

c)

H2O (l) + S3O (v) --> H2SO4 (aq)

d)

H2O (l) + SO3 (g) --> H2SO4 (aq)

61.

Which is the correct formula for "potassium bromide?"

4 lines
62.

Which is the correct formula for "calcium oxide?"

4 lines
63.

Which is the correct formula for "calcium nitrate?"

4 lines
64.

How many different elements are present in H2COCH2

a)

5

b)

4

c)

3

d)

2

65.

Calculate the number of Oxygen atoms in Al(OH)3

a)

1

b)

2

c)

3

d)

4

66.

C3H5(NO3)3

a)

C = 3, H = 5, N = 3, O = 9

b)

C = 3, H = 5, N = 1, O = 9

c)

C = 9, H = 15, N = 3, O = 9

d)

C = 9, H = 15, N = 1, O = 3

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