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Investigation 1 Quiz Combustion and Energy Intro

Total questions: 47

Worksheet time: 1hrs 20mins

Name
Class
Date
1.

What is NOT product of complete combustion?

a)

carbon dioxide

b)

fuel

c)

carbon monoxide

d)

water

2.
Another term for burning is
a)
Fire triangle
b)
Magnesium oxide
c)
Combustion
d)
Bustion
3.

Hydrocarbon fuel + oxygen ----> ___+____

(Select 2)

a)

CO2

b)

O2

c)

H2O

d)

CxHy

4.
Write a Balanced Equation for this reaction:
C2H4 + 2 O2 -->
a)
C2O2 + H4
b)
CO2 + HOH
c)
CO + H
d)
2 CO2 + 2H2O
5.

The correct balanced chemical equation for the reaction taking place is _____.

a)

C2H6 + 7O2 → 4CO2 + 6H2O

b)

2C2H6 + 7O2 →4CO2 + 6H2O

c)

2C2H6 +14O2 →4CO2 + 6H2O

d)

C2H6 + 7O2 → 2 CO2 + 3H2O

6.
What kind of energy conversion does a combustion reaction involve?
a)
Kinetic to Potential Energy
b)
Chemical Potential Energy to Kinetic or Thermal Energy
c)
Potential Energy to Nuclear Energy
d)
Mass to Energy
7.
Which of the following chemical reactions involve combustion?
a)
A forest fire
b)
Human digestion
c)
A car using gasoline
d)
All of the above
8.
The initial energy required to start a combustion reaction is called
a)
Potential Energy
b)
Kinetic Energy
c)
Chemical Potential Energy
d)
Activation Energy
9.
Which one of the following is not a fossil fuel?
a)
Wood
b)
Coal
c)
Petroleum
d)
Natural Gas
10.

100g of water (c=4.818 J/gCis heated by the combustion of 10g of charcoal. The temperature of the water increases by 10 degrees. What is the approximate energy density of charcoal for this  reaction? 

a)

4.18 J per gram

b)

41.8 J per gram

c)

418 J per gram

d)

0.418 J per gram

11.
Which of these isn't in the fire triangle?
a)
Fuel
b)
Heat
c)
Oxygen
d)
Carbon dioxide
12.

What is the approximate energy density based on this nutrition label for butter?

a)

4.6 Cal/g

b)

166 Cal

c)

98 Cal

d)

36 g

13.

Any type of energy that is stored is

a)

kinetic energy

b)

potential energy

14.

the energy of heat

a)

kinetic energy

b)

potential energy

c)

thermal energy

15.

Energy stored in the nucleus of atoms. Is released when atoms are fissioned or fused.

a)

kinetic energy

b)

nuclear energy

c)

chemical energy

16.

Energy can neither be created nor destroyed. This is the

a)

Law of conservation of mass

b)

Law of conservation of Energy

17.

The Law of Conservation of Energy states:

a)

Energy can created or destroyed but not transformed

b)

Energy cannot be created or destroyed, it can only transformed from one form to another form

c)

Energy can't be created, destroyed or transformed

d)

All the above

18.

When the cart started rolling the energy transformation was ______.

a)

Potential to kinetic

b)

Kinetic to potential

c)

No energy was transformed

d)

Not defined

19.

SI unit of work_____

a)

Watt

b)

Joule

c)

Newton

d)

Newton meter

20.
Matter can not be created nor destroyed: it can only be
a)
Destroyed a little bit
b)
Invisible
c)
Transformed, rearrenged
d)
None of the above
21.
If a reaction produces 18 grams, and one of its reactants had 10 grams, how much did the other reactant had?
a)
28 grams
b)
18 grams
c)
10 grams
d)
8 grams
22.
In a reaction A + B ----> AB,  reactant A has 4g and product  AB has 10g. How many grams does reactant B should have? 
a)
4g
b)
5g
c)
6g
d)
14g
23.
C4H6  + 3O2 ---------> 4CO2  +  3H2O is a 
a)
Decomposicion reaction
b)
Combustion reaction
c)
Sintesis reaction
d)
None of the above
24.
If a reaction starts with a total 75g of reactants it should produce 
a)
a total of 40g of products
b)
a total of 75g of products
c)
a total of 180 g of products
d)
None of the above
25.
In the reaction AB-----> A + B reactant AB has 12g and product B has 5g. How many grams should product A have?
a)
17g
b)
2g
c)
7g
d)
None of the above
26.

Which material would require the greatest amount of heat energy to raise its temperature from 5oC to 10oC?

a)

Iron

b)

Lead

c)

Granite

d)

Dry Air

27.

If the same amount of heat is added to each sample, the smallest change in temperature will occur in the

a)

Iron

b)

Dry Air

c)

Granite

d)

Water

28.

What would heat up the fastest if left out in the sunlight on a clear, summer day?

a)

Liquid Water

b)

Dry Air

c)

Lead

d)

Granite

29.

Why does water heat heat up and cool down VERY SLOWLY?

a)

High Specific Heat

b)

Low Specific Heat

c)

It's solid

d)

It's always cold

30.
What would be the effect on the particles if more heat is supplied to the system?
a)
They would slow down
b)
They would stop moving
c)
They would speed up
d)
There would be no effect
31.

Heat ALWAYS moves from

a)

Low to High Temperature

b)

High to Low Temperature

c)

It doesn't move

d)

High to Low Pressure

32.
What is the equation to measure change in Thermal Energy?
a)
Q=mc∆t
b)
Q=mc
c)
Q= ∆mct
d)
m=QC
33.
What does temperature measure?
a)
Heat
b)
ºC
c)
Kinetic Energy
d)
Thermal Energy
34.

The specific heat of tin is 0.213 J/g°C.  How much heat(Q) is released when a 12 g piece of tin foil is taken out of the oven and cools from 100° to 50°?

a)

128 J

b)

1.13 J

c)

33.9 J

35.

20 g of water. specific heat of water is 4.18 J/g°C.  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
36.

If the specific heat of water is 4.184 J/g∙°C, how much heat is required to increase the temperature of 1.2 kg of water from 23 °C to 39 °C? 

a)

80330 J

b)

80.33 J

c)

17.9 J

d)

0.0179 J

37.

The specific heat(c) of copper is 0.39 J/g °C. What is the temperature change(∆t) when 100 Joules of heat(Q) is added to 20 grams?

a)
12.82 °C
b)
24.12°C
c)
351 °C
38.
What is Specific Heat?
a)
The  amount of thermal energy required to increase the temperature of 1kg of a material by 1°C.
b)
The  amount of radiant energy required to increase the temperature of 1kgof a material by 1°C
c)
The  amount of energy required to increase the temperature of 1kgof a material by 1°C.
d)
The  amount of friction  required to increase the temperature of 1kgof a material by 1°C.
39.

A sample of iron receives 50.0 J of heat energy that raises the temperature of the iron 25.0°C. If iron has a specific heat of 0.4494 J/g°C, what is the mass of the iron sample?

a)

4.45 g

b)

562 g

c)

1.11 g

d)

More information is needed

40.
A reaction is performed in a beaker with a temperature probe recording the temperature changes of the reaction.  If the temperature began at 15.0 degrees Celsius and ended at 27.5 degrees Celsius.  If the reaction is our system, is the system endothermic or exothermic?
a)
Exothermic
b)
Endothermic
41.
In an endothermic reaction the system is releasing energy.
a)
True
b)
False
42.
In an exothermic process, the surroundings are are gaining energy.
a)
True
b)
False
43.

Calculate the heat needed to raise the temperature of 25 g of aluminum 7°C (c=0.9025 J/g°C)

a)

158 J

b)

1580 J

c)
514 J
d)
-514 J
44.
What type of reaction is pictured behind?
a)
endothermic
b)
exothermic
45.

Heat can be defined as

a)

The amount of kinetic energy in a sample

b)

The amount of potential energy in a sample

c)

The movement of energy between samples at different temperatures

d)

Heat is the invisible energy of a sample

46.

There is potential energy stored in the bonds between atoms in a sample. This statement best describes

a)

Kinetic Energy

b)

Potential Energy

c)

Chemical Potential Energy

d)

Radiant Energy

47.

Burning wax releases more energy per gram than burning paper. This is a statement of

a)

Energy density

b)

Potential energy

c)

Kinetic energy

d)

Radiant energy

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