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Let's Make Sure you Understand 1st Quarter's Content

Total questions: 50

Worksheet time: 2hrs 40mins

Name
Class
Date
1.

How many sig figs are in the number below?


106.00

a)

2

b)

3

c)

4

d)

5

2.

How many sig figs are in the number below?


0.056

a)

1

b)

2

c)

3

d)

4

3.
Calculate 1.23 m x 0.89 m and give your answer with the appropriate number of significant figures.
a)
1.0 m2
b)
1.1 m2
c)
1.0947 m2
d)
1.09 m2
4.
Calculate 923 g ÷ 20312 cm3 and give your answer with the appropriate number of significant figures.
a)
0.04 g/cm3
b)
0.045 g/cm3
c)
0.0454 g/cm3
d)
4 x 10-2 g/cm3
5.

What is the correct answer for this problem:

3.5 cm x 4.21cm =

a)

14.7 cm

b)

14.7 cm2

c)

15 cm

d)

15 cm2

6.
Volume?
a)
63.5 mL
b)
63 mL
c)
63.55 mL
d)
6 mL
7.

Volume?

a)

48 mL

b)

48.2 mL

c)

48.25 mL

d)

4 mL

8.

What do we use limewater to test for?

a)

Carbon Dioxide

b)

Water

c)

Heat

d)

Smoke

9.
What is essential for a combustion reaction to begin?
a)
Carbon dioxide
b)
Fuel 
c)
Fuel, oxygen and heat
d)
Water and oxygen
10.

What are the products of combustion?

a)

hydrogen + oxygen

b)

carbon dioxide + water

c)

carbon dioxide + hydrogen

d)

hydrocarbon + water

11.

An object has a volume of 29 cm3 and a mass of 261g. What is the object's density?

a)

9.0 g/cm3

b)

0.9 g/cm3

c)

0.111 g/cm3

d)

1.11 g/cm3

12.

What is the volume of 150. grams of lead if it has a density of 11.3 g/cm3?

a)

13.3 g

b)

13.3 cm3

c)

.075 g

d)

1695 cm3

13.
Which liquid is the least dense?
a)
oil
b)
water
c)
syrup 
d)
plastic bottle
14.

The density of this material is 2.0 g/cm3.

It has a volume of 24 cm3. Find the total mass.

a)

12 grams

b)

48 grams

c)

12 g/cm3

d)

48 g/cm3

15.
How many molecules of sugar (C6H12O6) are in a mole?
a)
24 molecules
b)
180 molecules
c)
180 g
d)
6.02 x 1023 molecules
16.

How many atoms of carbon are in 6.00 g of carbon?

a)

1.20x1024atoms C

b)

6.02x1023atoms C

c)

3.01x1023atoms C

d)

1.50x1023atoms C

17.

What is the mass of 1.2 x 1024 molecules of CO?

a)

28 grams

b)

56 grams

c)

6.02 grams

d)

1.2 grams

18.
How many moles are in 3.01 x 1022 atoms of magnesium?
a)
0.05 moles
b)
1.81 x 1046 moles
c)
5.00 x 1021 moles
d)
5 moles
19.

What is the mass of 0.890 mol of CaCl2?

a)

111 grams

b)

0.008 grams

c)

98.9 grams

d)

none of the choices

20.

What is the name of CCl4?

a)

carbon tetrachloride

b)

monocarbon tetrachloride

c)

tetracarbon monochloride

d)

carbon chloride

21.

What is the name of the compound SO2?

a)

monosulfate oxide

b)

sulfur dioxide

c)

monosulfur dioxide

d)

sulfur(IV) oxide

22.

What is the name for MgF2 ?

a)

magnesium fluoride

b)

magnesium difluoride

c)

magnesium(III) fluoride

d)

magnesium fluorine

23.

Select the correct formula for sulfur hexachloride

a)

S2Cl6

b)

S6Cl

c)

SCl6

d)

SF6

24.
Name the compound CaF2
a)
calcium difluoride
b)
calcium (II) fluoride
c)
calcium fluorite
d)
calcium fluoride
25.
Name the following compound: SnO2
a)
tin(II) oxide
b)
tin(IV)oxide
c)
tin(II)oxygen 
d)
tin oxide
26.
What is the correct formula for aluminum nitrate?
a)
AlN
b)
AlNO3
c)
Al(NO2)3
d)
Al(NO3)3
27.
What is the correct formula for sodium sulfate?
a)
NaSO4
b)
Na2S
c)
Na2SO4
d)
NaS
28.
Name the part in red:

H2 + O2 -> H2O
a)
Coefficient
b)
Product
c)
Yield
d)
Subscript
29.
How many hydrogens are in 4H2O?
a)
6
b)
8
c)
2
d)
4
30.
How many atoms of aluminum are on each side of the following equation: 4Al + 3O2 --> 2Al2 O3
a)
2
b)
6
c)
1
d)
4
31.
Fill in the blanks with coefficient:
PCl5+_ H2O→_ HCl+H3PO4
a)
4, 5
b)
1, 6
c)
3, 8
d)
2,2
32.

Balance this equation:

Sb2S3 + O2 --> Sb + SO2

a)

It is balanced

b)

Sb2S3 + 3O2 --> 2Sb + 3SO2

c)

Sb2S3 + O2 --> 2Sb + SO2

d)

Sb2S3 + O2 --> Sb2 + S3O2

33.

Which is an example of a physical property?

a)

melting point

b)

flammability

c)

reactivity

d)

combustivity

34.

Which of the following is NOT an example of a physical change?

a)

crumpling paper

b)

pencil sharpening

c)

shrinking clothing in the dryer

d)

rusting

35.

What type of reaction is the equation 2NaCl →2Na +Cl2?

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

36.

What type of reaction is the equation C + O2 → CO2?

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

37.

Cu + 2AgNO3 → 2Ag + CuNO3

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

38.

Ca3(PO4)2 + 3 H2SO4 + 3 CaSO4 + 2 H3PO4

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

39.

Consider the chemical equation CH4 + 2 O2 → CO2 + 2 H2O.

a)

single replacement

b)

combustion

c)

synthesis

d)

double replacement

40.

Predict the products of this synthesis reaction: H2 + Cl2 →

a)

HCl

b)

H2Cl2

c)

H2Cl

d)

HCl2

41.

Complete the balanced equation for this reaction:

3 NaOH + Fe(NO3)3 →

a)

NaFe + OH(NO3)3

b)

NaNO3 + Fe(OH)3

c)

3 NaNO3 + Fe(OH)3

d)

3 NaFe + 3 (OH)NO3

42.

Predict the products for this reaction: Fe2O3 →

a)

Fe + O2

b)

O + Fe2

c)

Fe2 + O3

d)

Fe + O

43.

Predict the products for this reaction:

Mg + CuCl →

a)

MgCl2 + Cu

b)

Mg + Cu

c)

MgCu + Cl2

d)

MgCl + Cu2

44.

What are the products of this reaction:

C2H4 + O2 →

a)

C2O2 + H4

b)

CO2 + H2 + O2

c)

CO + H

d)

CO2 + H2O

45.

Predict the products of this reaction: Na + H2O →

a)

NaO + H2

b)

NaOH + H2

c)

NaH + O2

d)

ONaH

46.

Based on the activity series, will this reaction occur?

Ni (s) + H2O (l) →

a)

Yes

b)

No

47.

Predict the product(s) of this reaction:

SrBr2 +I2→

a)

Sr + I2Br2

b)

SrBI + Br2

c)

SrI2 + Br2

d)

No Reaction

48.
Which of the following metals is the most reactive according to the reactivity series of metals.
a)
Copper
b)
Zinc
c)
Magnesium 
d)
Lithium
49.

Which one of the following would result in a reaction?

a)

Iron with magnesium chloride

b)

magnesium with iron chloride

c)

Iron with Zinc Sulphate

d)

gold with silver nitrate

50.

Zinc was placed into copper nitrate solution. Based on the picture, which is more acitve, copper or zinc?

a)

copper

b)

zinc

c)

sulfate

d)

they are equally reactive

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