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Regents Matter Practice

Total questions: 48

Worksheet time: 1hrs 19mins

Name
Class
Date
1.

What is this?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous MIxture

2.

What is this?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

3.
a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous MIxture

4.

What is it?

a)

Pure Substance

b)

Mixture

5.

What is it?

a)

Pure Substance

b)

Mixture

6.

What is it?

a)

Pure Substance

b)

Mixture

7.

When there is one type of atom

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

8.

When there is 2 or more atoms combined together

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

9.

A group of 2 or more items, that are not chemically combined

a)

Pure Substance

b)

Mixture

10.

A ______________ mixture is one that does not have a uniform composition.

a)

heterogeneous

b)

homogenous

c)

pure substance

11.

A _________________ mixture is one where the substances are evenly spread throughout.

a)

heterogeneous

b)

homogeneous

c)

pure substance

12.

Pure substances include:

a)

Elements

b)

Homogeneous Mixtures

c)

Compounds

d)

Heterogeneous Mixtures

13.

An element is?

a)

Chemically combined

b)

Pure substances that can be broken down

c)

Pure substances that cannot be broken down into simpler substances

d)

One or more elements chemically combined.

14.

An compound is?

a)

Chemically combined

b)

Pure substances that can be broken down

c)

Pure substances that cannot be broken down into simpler substances

d)

One or more elements chemically combined.

15.

Oxygen

a)

Element

b)

Compound

16.

Which is a mixture of compounds?

a)
b)
c)
d)
17.

Which is a pure substance?

a)
b)
c)
d)
18.
What is H2SO4 
 made up of?
a)
2 hydrogen, 1 sulfur, 4 oxygen
b)
1 hydrogen, 2 sulfur, 4 oxygen
c)
2 hydrogen & 4 sodium
d)
1 hydrogen & 6 sodium
19.

Dyes in water soluble markers may be separated by means of..

a)

crystallization

b)

sublimation

c)

chromatography

d)

sedimentation

20.
Which one of the following would you use to separate sand from iron filings?
a)
a bar magnet
b)
filter paper
c)
chromatography paper
d)
alum
21.
Water and alcohol are easily separated by distillation because of their
a)
 different melting points
b)
different colours
c)
different densities
d)
different boiling points
22.
To separate a mixture of salt and water what separation method is used?
a)
Filtration
b)
Distillation
c)
Chromatography
d)
Evaporation
23.
chromatography separate the mixture of dyes on the basis of their ----------------------------
a)
density
b)
solubility
c)
gravity
d)
boiling point
24.

Look at the apparatus setup. It CANNOT be used to separate which of the following mixtures?

a)

Marble chips from oil

b)

Alcohol and water

c)

Coffee grounds from sugar solution

d)

Sand and sea water

25.
Which of the following tells you that a chemical change may have occurred?
a)
Change Shape
b)
Melting
c)
Vaporizing
d)
Change in color
26.
What happens in ALL chemical changes?
a)
Change in state of matter
b)
A new substance is formed
c)
Bubbles are produced
d)
An explosion
27.

Describe the substance or change between letters D and E. 

a)
Gas
b)

Solid

c)
Melting
d)
Evaporating
28.
In which region(s) does temperature remain constant?
a)
Region 1, 3, & 5
b)
Region 2 & 4
c)
Region 1 only
d)
Region 1 & 2
29.

The melting point of the sample is

a)

-60 ºC

b)

-100 ºC

c)

60 ºC

d)

100 ºC

30.

This curve indicates what about the heat energy?

a)

Heat energy is being absorbed (added)

b)

Heat energy is being released (removed)

31.

What is the freezing point of the substance?

a)

0oC

b)

60oC

c)

120oC

d)

180oC

32.

From point A to point F, the sample is going through an __________ process by __________.

a)

exothermic, releasing heat to the surroundings

b)

exothermic, absorbing heat from the surroundings

c)

endothermic, releasing heat to the surroundings

d)

endothermic, absorbing heat from the surroundings

33.

Given the heating curve of a solid being heated at a constant rate, how much total time was required to boil this substance AFTER it reached its boiling point?

a)

3 minutes

b)

4 minutes

c)

10 minutes

d)

14 minutes

34.

Given the heating curve of water, what is happening to potential and kinetic energy during segment CD?

a)

the potential energy and kinetic energy both increase

b)

the potential energy increases while the kinetic energy decreases

c)

the potential energy is constant while the kinetic energy increases

d)

the potential energy increases while the kinetic energy is constant

35.
If a balloon is cooled what will happen to the volume?
a)
Volume will increase
b)
Volume will decrease
c)
Volume will not change
d)
Balloon freezes to death
36.
You have a gas that has a pressure of 2 ATM and a volume of 10L.  What would be the new volume if the pressure was changed to 1 ATM?
a)
5 L
b)
20 L
c)
It would stay at 10L
d)
1 L
37.
In order to convert to Kelvin, you add ______ to the Celsius measurement.
a)
372
b)
273
c)
237
d)
732
38.
At STP, what is pressure in atmospheres?
a)
1 atm
b)
10 atm
c)
0 atm
d)
100 atm
39.
Which container will have a lower pressure?
a)
left
b)
right
c)
they both have the same pressure
d)
I don't know
40.

What relationship is shown in this graph?

a)

As pressure increases, volume also increases

b)

As temperature increases, volume decreases

c)

As pressure increases, volume decreases

d)

As temperature decreases, volume decreases

41.
A sample of iron receives 50.J of heat energy that raises the temperature of the iron 25.0°C. If iron has a specific heat of  0.10 J/g°C, what is the mass of the iron sample?
a)
25 g
b)
30 g
c)
20 g
d)
50 g
42.
You have 20 g of water with specific heat of 4.18 J/gŸ°C.  The temperature changes from 25° C to 20° C.  How much heat energy (Q) moves from the water to the surroundings?
a)
418 Joules
b)
209 J
c)
83 J
d)
4.18 J
43.

How many Joules of energy are required to make 50.0 grams of ice at 0 οC completely melt?

a)

334 J

b)

0 J

c)

33,400 J

d)

16,700 J

44.

What is the formula to calculate heat energy required to raise the temperature of any substance?

a)

Q=mc∆t

b)

Q=mH

c)

Q= ½mv

d)

m=QC

45.

The heat absorbed while a solid is melting is known as....

a)

heat of fusion

b)

heat of solid

c)

heat of liquid

d)

heat of vaporization

46.

Calculate the energy needed to completely boil away 30 g of water at 100 ⁰C .

a)

67,800 J

b)

2260 J

c)

226,000 J

d)

100 J

47.

Heat always flows from a __________________ to a cooler object.

a)

warmer

b)

cooler

c)

liquid

d)

gas

48.

The amount of heat needed to change 1 gram of a substance from the liquid phase to the gas phase is ___

a)

Heat of Vaporization

b)

Boiling point

c)

Heat Energy

d)

Phase change

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