Free Printable #3 Fall Final Chemistry Review

1.

what is the number .0000809 written in scientific notation?

a)

8.09

b)

$8\times10^4$

c)

$809\times10^7$

d)

$8.09\times10^{-5}$

2.

What is the number 70500000 in scientific notation?

a)

705

b)

7.05

c)

$7.05\times10^7$

d)

$7.05\times10^{-5}$

3.

What is the number 34000 in scientific notation?

a)

3.4

b)

$3.4\times10^5$

c)

$3.4\times10^{-4}$

d)

$3.4\times10^4$

4.

Aluminum and Oxygen combine to form which of the following compounds

a)

$AlO$

b)

$Al_2O_3$

c)

$Al_3O_2$

d)

$Al_7O_5$

5.

What is the chemical formula for Calcium Bromide?

a)

$CaBr$

b)

$CaBr_2$

c)

$Ca_2Br$

d)

$Ca_2Br_7$

6.

Match the following compounds containing polyatomic ions.

a)

$NaNO_3$

1.

Sodium Nitrate

b)

$NaNO_2$

2.

Sodium Nitrite

c)

$K_3PO_4$

3.

Potassium Phosphate

d)

$K_3PO_3$

4.

Potassium Phosphite

7.

Significant figures: Round off this measurement to 3 significant figures. 35.27g

a)

35.0g

b)

35.2g

c)

35.3g

d)

35.30g

8.

Significant figures: Round off this measurement to 2 significant figures. 0.414g

a)

0.410g

b)

0.42g

c)

0.41g

d)

0.4g

9.

Dimensional Analysis (AKA: Unit Conversion): How many cm is equal to 1450 m?

a)

$1.45\times10^5$

b)

$1.45\times10^3$

c)

$1.45\times10^{-5}$

d)

$1.45\times10^{-3}$

10.

Dimensional Analysis: Given 1 kg = 2.20 lbs, how many kilograms are in 338 lbs?

___ kg (3 significant figures)

a)

743.6kg

b)

153.6kg

c)

154kg

d)

744kg

11.

Dimensional Analysis: How many centimeters are there in 324 feet? (3 significant figures)

a)

$9.9\times10^3cm$

b)

$9875.5cm$

c)

$9880cm$

d)

10.6cm

12.

1s2 , 2s2, 2p2 is the electron configuration for what element?

a)

Carbon

b)

Sodium

c)

Argon

d)

Cobalt

13.

[Ne] 3s¹ or 1s² 2s² 2p⁶ 3s¹ is the electron configuration for what element?

a)

Carbon

b)

Sodium

c)

Argon

d)

Cobalt

#3 Fall Final Chemistry Review

Total questions: 13

Worksheet time: 8mins

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