Free Printable Exam 0 Material

1.

How many sig figs should your answer have if you get a question like this?

If the density of gold is 19.3 $\frac{g}{cm^3}$ , what is the volume in mL of 50 g of gold?

a)

1

b)

2

c)

3

d)

Wrong answer :)

2.

Polyatomic Ions:

What's the chemical formula for nitrate?

a)

$NO_2^-$

b)

$NO_3^-$

c)

$NO_2^{2-}$

d)

$NO_3^{3-}$

3.

What's the chemical formula for ammonium?

a)

$NH_4^+$

b)

$NH_3^+$

c)

$NO^-$

d)

$NH_4^{2+}$

4.

What is the chemical formula for sulfate?

a)

$SO_4^{2-}$

b)

$SO_3^-$

c)

$SO_2^{2-}$

d)

$SO^-$

5.

What is the chemical formula for phosphate?

a)

PO^-

b)

PO^2-

c)

PO₄^2-

d)

PO₄^3-

6.

What is the chemical formula for carbonate

a)

CO₃^2-

b)

CO₃^-

c)

CO₂^2-

d)

CO²⁺

7.

What is the chemical formula for acetate?

a)

CHO^-

b)

C₃H₂O^-

c)

C₃H₂O₃^-

d)

C₂H₃O₂^-

8.

What is the chemical formula for chlorate?

a)

ClO₂^2-

b)

ClO₂^3-

c)

ClO₃^-

d)

ClO₃⁺

9.

What is the chemical formula for hydroxide?

a)

OH^-

b)

OH^2-

c)

OH^3-

d)

HO^-

10.

What is the chemical formula for cyanide?

a)

CN^-

b)

C₂N^-

c)

CN₃^-

d)

C₂N₂^-

11.

Prefixes: kilo-

a)

1000

(10³)

b)

100

(10²)

c)

.001

(10^-3)

d)

.01

(10^2-)

12.

Prefix: centi-

a)

1000

(10³)

b)

100

(10²)

c)

.001

(10^-3)

d)

.01

(10^2-)

13.

Prefix: milli-

a)

1000

(10³)

b)

100

(10²)

c)

.001

(10^-3)

d)

.01

(10^-2)

14.

Prefix: micro-

a)

10^-12

b)

10^-9

c)

10^-6

d)

10^-3

15.

Prefix: pico-

a)

10^-12

b)

10^-9

c)

10^-6

d)

10^-3

16.

Prefix: nano-

a)

10^-12

b)

10^-9

c)

10^-6

d)

10^-3

17.

a)

3 cm

b)

3.3 cm

c)

3.30 cm

d)

Wrong answer :)

18.

K (kelvins) = $\degree C\$ +

(a)

19.

What kind of filtration technique is applied to substances based on different particle sizes AND density?

a)

filtration

b)

distillation

c)

chromatography

d)

centrifugation

20.

Exothermic reactions __________ energy/heat and so feel __________.

a)

release; hotter

b)

release; colder

c)

absorb; hotter

d)

absorb; colder

Exam 0 Material

Total questions: 20

Worksheet time: 9mins

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