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Chemistry

Total questions: 46

Worksheet time: 23mins

Name
Class
Date
1.

If an Ice cream melts will it be

a)

Physical Change

b)

Chemical change

c)

Elemental change

d)

states of matter changes

2.
What is a pure substance that cannot be broken down into any other substance by physical or chemical means. Ex: Gold, Silver, Oxygen, & Nitrogen
a)
element
b)
compound
c)
mixture
d)
salad
3.
The Law of Conservation of Matter says
a)
Matter can be created, but not destroyed
b)
matter can be destroyed, but not created
c)
matter cannot be created or destroyed
4.

A physical change...

a)

changes the physical properties of an object, but does not create a new substance.

b)

creates a new substance and cannot be undone.

5.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

6.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

7.

The state of matter where particles are very spread out and moving quickly.

a)

gas

b)

liquid

c)

solid

d)

Helium

8.

The phase change when a solid becomes a liquid.

a)

freezing

b)

sublimation

c)

melting

d)

condensation

9.

As heat energy increases, temperature...

a)

increases

b)

decreases

c)

remains the same

d)

varies

10.

The phase change when a gas becomes a liquid.

a)

condensation

b)

evaporation

c)

deposition

d)

sublimation

11.
What state of matter has no definite volume and assumes the shape of its container?
a)
Solid
b)
Liquid
c)
Gas
12.
The drops of water that appear on the outside of a glass of cold juice on a warm day are an example of?
a)
Sublimation: A solid turning into a gas.
b)
Condensation: A gas changing to a liquid.
c)
Evaporation: A liquid changing to a gas.
d)
Deposition: A gas changing to a solid.
13.
Anything that has mass and takes up space is called ______.
a)
atom
b)
compound
c)
matter
d)
molecule
14.
Liquids and gases are similar because __________________________.
a)
they both take the shape of their container
b)
they both have their own shape
c)
liquids pour and gases don't
d)
liquids take the shape of the container but gases have their own shape
15.
What Is Volume?
a)
How heavy something is.
b)
The amount of space taken up by and object.
c)
How a liquid flows.
d)
The international unit of measurement.
16.

The type of matter with the lowest heat energy and temperature.

a)

gas

b)

solid

c)

liquid

d)

plasma

17.
What phase of matter is shown in the diagram?
a)
solid
b)
liquid
c)
gas
d)
physical changes
18.
Which state of matter?
a)
Solid
b)
Liquid
c)
Gas
d)
Texas
19.
Look at this image.  Which object has the LOWEST density in water? How? 
a)
The Ping Pong Ball because it floats to the top 
b)
The bolt because it has sunk to the bottom
c)
The soda cap because it is not just full of air like the Ping Pong ball
20.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
21.
If an object has a density of .6 g/mL and you put it into water, will it sink or float?  
a)
sink
b)
float
22.
Helium balloons rise on earth because
a)
helium is less dense than air
b)
helium is more dense than air
c)
helium is cooler than air
d)
helium is warmer than air
23.
How are elements on the periodic table arranged by?
a)
in alphabetic order
b)
simular physical & chemical properties
c)
their symbols
d)
Just simular physical properties
24.
Two elements chemically bonded form
a)
element
b)
compound
c)
mixture
d)
solutions
25.
What element is will have the most similar physical and chemical properties to the element Sulfur (S)?
a)
Carbon (C)
b)
Phosphorous (P)
c)
Oxygen (O)
d)
Neon (Ne
26.
What element is will have the most similar physical and chemical properties to the element Lithium (Li)?
a)
Sodium (Na)
b)
Magnesium (Mg)
c)
Beryllium (Be)
d)
Calcium (Ca)
27.
Which group of the periodic table is composed of inert (not reactive)  gases?
a)
alkali metals
b)
alkaline earth metals
c)
halogens
d)
noble gases
28.

What is a chemical reaction?

a)

a change in matter when the molecules rearrange to make new molecules

b)

a change in matter when matter changes its form or appearance

c)

a change in matter when the physical appearance changes

d)

a very boring change in matter

29.

This change is a

a)

chemical reaction

b)

physical change

c)

musical change

d)

all answers are correct

30.

The products are:

a)

molecular oxygen and 2 carbon

b)

2 carbon monoxide

c)

all of these are products

d)

all of these are reactants

31.
Which of the following is a chemical change?
a)
water freezes to form ice
b)
sugar dissolves in water
c)
gasoline burns in a car engine
d)
a piece of metal expands when it is heated
32.
Which of the following is a chemical change?
a)
the rusting of iron
b)
dissolving salt in water
c)
melting an ice cube
d)
bending a copper wire
33.
Which of the following is an example of a chemical change?
a)
rusting of a bicycle
b)
painting a house
c)
washing a dog
d)
tearing up a newspaper
34.
Which is an example of a physical change?
a)
sodium and chlorine form salt
b)
a copper ring turns white and green
c)
a log burns in a fire
d)
using sand and water to build a sand castle on a beach
35.
In any chemical reaction, the mass of the products is always:
a)
slightly less than the mass of the reactants
b)
much less than the mass of the reactants
c)
the same as the mass of the reactants
d)
greater than the mass of the reactants
36.
Raising the temperature of a chemical reaction would make the reaction __________________.
a)
happen slower
b)
happen faster
c)
stop completely
d)
proceed as normal
37.
If I dissolve sugar in water, what is the solute?
a)
Water
b)
Hydrogen
c)
Sugar
d)
Carbon
38.

The substance in which a solute is dissolved is a?

a)

solution

b)

solvent

c)

alloy

d)

mixture

39.

If I dissolve salt in water, what is the solute?

a)

water

b)

salty water

c)

none of the above

d)

salt

40.

Which of the following would NOT increase the rate at which a sugar cube dissolves?

a)

Reducing the amount of solvent

b)

Crushing the sugar cube

c)

Stirring the solution

d)

Heating the solvent

41.

You can make a solute dissolve more quickly in a solvent by

a)

adding more solute.

b)

adding ice.

c)

heating the solvent.

d)

removing some solvent.

42.
In the above picture, a powder is about to be poured into the liquid. Which of the following should be done to make this powder dissolve faster?

a)
stir the powder in the liquid
b)
freeze the mixture
c)
add more powder to the liquid
d)
store the mixture in a dark place
43.
At approximately what temperature does the solubility of sodium chloride, NaCl, match the solubility of potassium dichromate, K2Cr2O7?
a)
60 ºC
b)
30 ºC
c)
50 ºC
d)
83 ºC
44.
How many grams of K2Cr2O7, are soluble in 100 g of water at 95 ºC?
a)
83 grams
b)
75 grams
c)
40 grams
d)
12 grams
45.
Which substance is MOST soluble at 0 ºC?
a)
KI
b)
NaNO3
c)
NaCl
d)
Ce2(SO4)3
46.
Which solute does not increase in solubility as temperature rises?
a)
NH3
b)
NaNO3
c)
KNO3
d)
NaCl

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