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Chemistry Reviewer (First Quarter)

Total questions: 48

Worksheet time: 33mins

Name
Class
Date
1.

It is a measure of the quantity of matter

a)

Gravity

b)

Density

c)

Volume

d)

Mass

2.

It is created when mass interacts with gravity

a)

Volume

b)

Density

c)

Weight

d)

Mass

3.

Which of the given choices are not forms of matter?

a)

Solute

b)

Light

c)

Heat

d)

Liquid

4.

What is shown in the picture?

a)

Gas

b)

Plasma

c)

Liquid

d)

Solid

5.

Liquids are compressible

a)

True

b)

False- incompressible

6.

Gas molecules are randomly arranged and slide past each other

a)

True

b)

False- Liquid Molecules

7.

The movement of molecules in a solid is vibrational

a)

True

b)

False- move at high speeds

8.

The temperature at which liquid and solid states coexist in equilibrium is called the______

a)

Saturation Point

b)

Boiling point

c)

Freezing/ Melting point

d)

Solubility

9.

Deposition is an endothermic process

a)

True

b)

False- exothermic

10.

It is the other term for Melting

a)

deliquesce

b)

coagulation

c)

fusion

d)

liquify

11.

Which is an Element?

a)

NaCl

b)

C8H18

c)

Mn

d)

H2O2

12.

Which of the following are mixtures?

a)

Sodium Bicarbonate

b)

Methane

c)

Brass

d)

Salt water

13.

Which of the following is shown in the picture

a)

Atom

b)

Molecule

c)

Mixture of elements

d)

Mixture of compounds

14.

The picture given is an example of a mixture of elements and compounds

a)

True

b)

False- mixture of elements

15.

Compounds are MIXTURES that are composed of 2 substances combined in definite proportions

a)

True

b)

False- Pure Substances

16.

mixtures can only be separated by chemical processes

a)

True

b)

False- Physical processes

17.

Pure Substances have uniformed composition.

a)

True

b)

False- not uniformed composition

18.

Atoms are composed of two or molecules bound together in a discrete arrangement

a)

True

b)

False- Molecules, atoms

19.

Mixtures can be further classified as Homogeneous and Heterogeneous mixture

a)

True

b)

False- Diluted and Concentrated

20.

The Ocean is an example of a heterogeneous mixture

a)

Yes, because it contains other debris like garbage and sea rocks

b)

No, because the Ocean is composed of sea water which is a Salt solution

21.

A physical property is a characteristic that we can observe without changing the composition of a substance

a)

True

b)

False

22.

Qualitative properties include mass and density

a)

False- Color and Odor

b)

True

23.

What is 50000 g in kilograms

a)

500 kg

b)

50 kg

c)

5 kg

d)

5000 kg

24.

What is the amount of space that a substance occupies?

a)

Mass

b)

Density

c)

Volume

d)

Temperature

25.

Evelyn wants to know the volume of a rock, what formula should she use in order to know the volume of a rock?

a)

v= lwh

b)

v= vf - vi

26.

1 ml is equivalent to 1 cubic centimeter

a)

True

b)

False- 1 cm

27.

Anthony wants to know the density of a boat, what formula should he use in order to find the density of the boat?

a)

m= d x v

b)

d= m/v

c)

v= m/d

28.

Intensive properties include the color and odor of a sample material

a)

True

b)

False

29.

Physical Change involves the changing of chemical composition of an object.

a)

True

b)

False- does not involve

30.

Kimberly observed that as water is heated, it evaporates. What kind of change does this imply?

a)

Physical

b)

Chemical

31.

Bubbling is a result of

a)

Chemical Change

b)

Physical Change

32.

Kinetic Energy is an energy possessed by an object because of its position

a)

True

b)

False- potential energy

33.

Josefa went into a trip abroad, however the plane she's riding crashed and she got stranded in an island. The Island does not have a source of fresh water. What should she do to the surrounding seawater in order to obtain potable water?

a)

Fractional Distillation

b)

Evaporation

c)

Distillation

d)

Sedimentation

34.

What method is used to extract asphalt from crude oil?

a)

Decantation

b)

Fractional Distillation

c)

Flotation

d)

Spooning

35.

Solutions are Homogeneous Mixtures

a)

True

b)

False- Heterogeneous

36.

Sir Sat added 15 cups of soy sauce in 200 ml water to make an Adobo solution, however the solution's color turned out to be pitch black. What does this imply?

a)

It is supersaturated because the amount of solute exceeded the prescribed amount of solute in a solvent in a given temperature

b)

It is Concentrated because the amount of solute is larger than the solvent and it has a dark color

c)

It is Saturated because it has the maximum amounte of solute in a given solvent at a given temperature

37.

What kind of solution does a 18k Gold ring have?

a)

Solid Solution

b)

Liquid Solution

c)

Gaseous Solution

d)

Saturated Solution

38.

The Solubility of a Gas increases when (a)  

39.

What is the Solubility of NaNO3 in 85 degrees celsius

a)

approx 149 g

b)

approx 148 g

c)

approx 150 g

d)

approx 151 g

40.

If KNO3 dissolves at 80 g per 100 g of water at 50 degrees, what will be its solubility if there is 50 g of water

a)

40 g

b)

60 g

c)

30 g

d)

55 g

41.

If KNO3 dissolves at 80 g per 100 g of water at 50 degrees, what will be its solubility if there is 200 g of water

a)

130 g

b)

150 g

c)

160 g

d)

190 g

42.

What is the percent by mass concentration of a salt solution which contains 180 g of NaCl and 1000 g of water?

a)

14.35%

b)

11.44%

c)

15.25%

d)

17.44%

43.

What mass of the Solute is needed to prepare a 200g solvent which contains 12% salt solution

a)

6 g

b)

18 g

c)

12 g

d)

4 g

44.

compute the percent-by-volume concentration of a 300ml solution that contains 111 ml of ethanol

a)

30%

b)

40%

c)

37%

d)

19%

45.

What is the Proof Number of a wine that contains 85% alcohol by volume?

a)

50%

b)

42.5%

c)

34%

d)

44%

46.

10g of Iron fillings is dissolved in 90 g of water. The density is 1.09 g/ml. Calculate the mass/ volume percent of the soln.

a)

11.7%

b)

10%

c)

12.9%

d)

10.9%

47.

The concentration of mercury in a river water is 284,000 ppm. Find the grams of mercury contained in 100 g of river water.

a)

x= 28.1 g

b)

x= 28.5 g

c)

x= 21.4 g

d)

x= 28.4 g

48.

Cl- ion in sample water is 15 ppb. What is the mass of Cl- ion present in 240 ml of water, which has a density of 1.00g/ml

a)

x= 0.11111145

b)

x= 0.000036

c)

x= 0.000015

d)

x= 0.000024

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