Free Printable Chemistry Test #2 Bessette

1.

What is the scientific notation for the number 5,600,000?

a)

$5.6 \times 10^5$

b)

$5.6 \times 10^6$

c)

$5.6 \times 10^7$

d)

$5.6 \times 10^8$

2.

Convert $3.45 \times 10^{-4}$ to standard notation.

a)

0.000345

b)

0.00345

c)

0.0000345

d)

0.000345

3.

Multiply the following numbers in scientific notation: $(2 \times 10^3) \times (3 \times 10^4)$ .

a)

$6 \times 10^7$

b)

$6 \times 10^6$

c)

$5 \times 10^7$

d)

$5 \times 10^6$

4.

Divide the following numbers in scientific notation: $\frac{8 \times 10^5}{4 \times 10^2}$ .

a)

$2 \times 10^3$

b)

$2 \times 10^2$

c)

$2 \times 10^4$

d)

$2 \times 10^5$

5.

Add the following numbers in scientific notation: $(4.5 \times 10^3) + (3.5 \times 10^3)$ .

a)

$8.0 \times 10^3$

b)

$7.0 \times 10^3$

c)

$7.5 \times 10^3$

d)

$8.5 \times 10^3$

6.

Subtract the following numbers in scientific notation: $(9.0 \times 10^4) - (2.5 \times 10^4)$ .

a)

$6.5 \times 10^4$

b)

$7.5 \times 10^4$

c)

$6.0 \times 10^4$

d)

$7.0 \times 10^4$

7.

What is the scientific notation for the number 0.0000789?

a)

$7.89 \times 10^{-5}$

b)

$7.89 \times 10^{-4}$

c)

$7.89 \times 10^{-6}$

d)

$7.89 \times 10^{-7}$

8.

Multiply the following numbers in scientific notation: $(5 \times 10^2) \times (4 \times 10^3)$ .

a)

$2.0\times10^6$

b)

$2.0\times10^5$

c)

$2.0\times10^4$

d)

$20\times10^5$

9.

Divide the following numbers in scientific notation: $\frac{6 \times 10^6}{3 \times 10^2}$ .

a)

$2 \times 10^4$

b)

$2 \times 10^5$

c)

$2 \times 10^3$

d)

$2 \times 10^6$

10.

Add the following numbers in scientific notation: $(1.2\times10^5)+(3.8\times10^6)$

a)

$5.0 \times 10^5$

b)

$4.0 \times 10^5$

c)

$5.0\times10^6$

d)

$3.92\times10^6$

11.

Subtract the following numbers in scientific notation: $(7.0\times10^7)-(2.0\times10^6)$ .

a)

$5.0\times10^7$

b)

$5.0\times10^1$

c)

$6.8\times10^7$

d)

$6.8\times10^6$

12.

Why is scientific notation important in chemistry?

a)

It has no importance in chemistry

b)

Chemistry does not involve large or small numbers

c)

It makes calculations more complicated

d)

It allows for easier representation of very large or very small numbers.

13.

How would you write 564,000,000 in scientific notation?

a)

5.64 x 10^-7

b)

5.64 x 10⁶

c)

5.64 x 10⁸

d)

56.4 x 10⁷

14.

The prefix "kilo" means: ____________________

a)

1 x 10^-1

b)

1 x 10³

c)

1 x 10^-3

d)

1 x 10²

15.

Express the following in scientific notation:
.000457

a)

457 x 10⁶

b)

457 x 10^-6

c)

4.57 x10⁴

d)

4.57 x 10^-4

16.

You know 1000 mg = 1 g. Convert 2.5 grams into milligrams.

a)

25 mg

b)

25,000 mg

c)

250 mg

d)

2500 mg

17.

Put the liquids in order from highest density to lowest density?

a)

4, 3, 2, 1

b)

1, 2, 3, 4

c)

3, 4, 2, 1,

d)

4, 3, 1, 2

18.

The smallest part of an element is a / an _____________

a)

Atom

b)

Electron

c)

Molecule

19.

What is the organizational system or chart called for the elements?

a)

Atomic weight

b)

Families

c)

Periodic table

d)

Atomic number

20.

When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?

a)

Dependent

b)

Independent

c)

Control

d)

Compound

21.

Research Question: Does the type of gasoline put in a car effect how fast the car can drive. What is the independent variable?

a)

Type of gasoline

b)

which car the gas is put into

c)

how fast the car can drive

d)

how much gas is put into the car

22.

Convert

100^oC

to Kelvin

a)

$373\ K$

b)

$273\ K$

c)

$212\ K$

d)

$0\ K$

23.

Convert

450\ K

to Celsius

a)

$723^oC$

b)

$277^oC$

c)

$177\ ^oC$

d)

$623^oC$

24.

What is the boiling point of water on the Fahrenheit scale?

a)

$0^oF$

b)

$373^oF$

c)

$100^oF$

d)

$212^oF$

25.

What is the boiling point of water on the Celsius scale?

a)

$0^oC$

b)

$373^oC$

c)

$100^oC$

d)

$212^oC$

26.

What is the freezing/melting point of water of the Fahrenheit scale?

a)

$-273^oF$

b)

$0^oF$

c)

$32^oF$

d)

$273^oF$

27.

What is the freezing/melting point of water of the Celsius scale?

a)

$-273^oC$

b)

$0^oC$

c)

$32^oC$

d)

$273^oC$

28.

What is the freezing/melting point of water on the Kelvin scale?

a)

$0\ K$

b)

$100\ K$

c)

$273\ K$

d)

$32\ K$

29.

Convert: 25.0 ^oC to ^oF:

a)

77 F

b)

77 C

c)

100 F

d)

100 C

30.

Convert: 150 ^oF to ^oC:

a)

65.5 C

b)

65.5 F

c)

338.5 C

d)

338.5 F

31.

Convert: 212 F to C:

a)

100 C

b)

100 K

c)

100 F

d)

50 C

32.

Which of the following has two types of particles?

a)

melting phase

b)

solid phase

c)

gas phase

d)

liquid phase

33.

At this point, kinectic energy is the lowest.

a)

solid phase

b)

gas phase

c)

condensation

d)

melting

34.

At which point on the heating curve is melting occuring?

a)

a

b)

b

c)

d

d)

e

35.

Particles in this section are FAR APART, have HIGH KE and move randomly

a)

a

b)

b

c)

d

d)

e

36.

Which section has TWO types of particles? Some are sliding past one another, and some are vibrating

a)

Solid Phase

b)

Liquid Phase

c)

Condensation

d)

Melting

37.

All particles in this phase are close together with PERMANENT hydrogen Bonds

a)

Solid Phase

b)

Liquid Phase

c)

Condensation

d)

Melting

38.

Select the letter that best represent the following description: Particles losing KE, particles reforming temporary hydrogen bonds, contains gas and liquid particles

a)

c

b)

e

c)

d

d)

z

39.

Energy is removed from water, which is the best description?

a)

going from solid to liquid

b)

freezing

c)

particles gaining KE and breaking temporary bonds

d)

vaporization

40.

These particles are in the ________ phase

a)

Melting/ Freezing

b)

Vaporization/ condensation

c)

solid

d)

liquid

41.

These particles are in the ________ phase

a)

Melting/ Freezing

b)

Vaporization/ condensation

c)

solid

d)

liquid

42.

These particles are in the ________ state of matter

a)

Melting/ Freezing

b)

Vaporization/ condensation

c)

solid

d)

liquid

43.

These particles are in the ________ state of matter

a)

Melting/ Freezing

b)

Vaporization/ condensation

c)

solid

d)

liquid

44.

Which phase of matter has particles with the highest kinetic energy?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

45.

Researchers are developing a new fertilizer designed to improve the growth of endangered Hawaiian plants. The fertilizer was applied to one hundred plants in a greenhouse. The temperature, humidity and amount of water were kept constant. Which is best for the researchers to do next?

a)

A compare plants that received fertilizer plants that received none

b)

B begin selling the fertilizer to gardeners living in hot, dry climates

c)

C change the conditions in the greenhouse and retest the fertilizer

d)

D test the fertilizer on plants that are adapted to cooler climates

46.

A scientist investigates the effect of carbon dioxide on plant height. The scientist grows plants in several closed containers. All the plants receive the same amounts of water and light, but the air in each container has a different amount of carbon dioxide. What is the independent variable in this experiment?

a)

the amount of carbon dioxide in each container

b)

the number of plants in each container

c)

the amount of water provided to the plants

d)

the height of each plant after a period of time

47.

A meteorologist recorded high temperatures for five days at three locations on land. The data are shown in the table above.

a)

Areas at the beach have the coolest temperatures

b)

Areas farther from the beach always have the warmest temperatures.

c)

Areas at the beach have the most stable temperatures.

d)

Areas farther from the beach always have the same weather as areas at the beach

48.

The table shows different types of pollination data for the fruit from one plant species.

Which is the correct graph for the data in the table?

a)

b)

c)

d)

49.

This variable in an experiment is the one being changed by the scientist.

a)

dependent variable

b)

independent variable

c)

data

d)

control group

50.

If you increase the amount of spinach you eat, then you will increase the iron in your blood.

What's the dependent variable?

a)

increase the amount of iron in your blood

b)

spinach you eat

c)

you are

51.

If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?

a)

The school

b)

How fast you get to school

c)

Riding a bike or walking

d)

You are

52.

If the students study for my scientific method test, then they will have a better test score. What is the dependent variable?

a)

Scientific Method

b)

Studying

c)

The students

d)

Test score

53.

What is the part of the experiment that is left alone or “natural", and is used to compare back to?

a)

Independent Variable

b)

Dependent Variable

c)

Control Group

d)

Experimental Group

54.

You will want your experiment to have ____ independent variable(s) in it for the experiment to be valid.

a)

1

b)

2

c)

3

d)

As many as possible

Chemistry Test #2 Bessette

Total questions: 54

Worksheet time: 48mins

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