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Unit 2: Chemical Reaction 2
Test Description: Practice Exam for Test on Friday
Instructions: Answer all questions to get your test result.
1) A reaction that absorbs energy
A
Endothermic Reaction
B
Exothermic Reaction
C
Atoms
D
Chemical Potential
2) Energy that is stored in chemical bonds
A
Thermal Energy
B
Atoms
C
Chemical Potential
D
Physical Change
3) The starting Materials in a chemical reaction
A
reactants
B
Temperature
C
Heat
D
products
4) Any physical object that has mass and takes up space
A
Gravitational Potential
B
Products
C
Matter
D
Volume
5) The energy of an object that is responsible for being able to measure temperature
A
Thermal Energy
B
Kinetic Energy
C
Volume
D
Mass
6) Energy Transferred between objects of different temperatures
A
Gravitational Potential
B
Volume
C
Heat
D
Elastic Potential
7) A reaction that releases energy
A
Thermal
B
Potential
C
Exothermic
D
Endothermic
8) A change in which the reactants and products are different
A
Products
B
Physical Reaction
C
Chemical Reaction
D
Mass
9) A measurement that is related to the energy of an object, but is not energy itself.
A
Reactants
B
Temperature
C
Graduated Cylinder
D
Volume
10) A change in which the reactants and products are still the same.
A
Elastic Potential
B
Physical Reaction
C
Atoms
D
Chemical Reactions
11) The smallest part of an element that is still the element
A
Atoms
B
Heat
C
Matter
12) The substance created during a chemical reaction
A
Reactants
B
Products
C
Gas
D
Volume
13) Which of the following is a chemical reaction?
A
Cutting paper in half
B
Wood burning
C
Putting food dye in water
D
Mixing salt into water.
14) Which of the following best explains why scientists would use tools rather than their senses?
A
Our senses are never to be trusted
B
Use of our senses always results in injury
C
Tools allow for accurate measurement
15) Which tool is best for measuring a volume of a liquid?
A
Ruler
B
graduated cylinder
C
Digital Scale
D
thermometer
16) Which of the following is a physical change?
A
water evaporating
B
Baking a cake
C
Digestion of food
D
Metal rusting
17) Which of the following is a phase change?
A
Metal rusting
B
milk spoiling
C
melting ice
D
tearing a paper towel
18) Which of the following is not a type of energy?
A
Heat
B
Chemical potential
C
Temperature
D
Gravitational potential
19) Which of the following describes when energy flow stops?
A
Energy flows until both objects melts
B
Energy flows until both objects used up their thermal energy
C
Energy flows until the objects are the same temperature
D
Energy flows until the objects both become gases.
20) Which of the following describes how energy is transferred?
A
Cold flows from lower temperature to higher temperature.
B
Energy flows from higher temperature to lower temperature
C
Cold flows from lower thermal energy to higher thermal energy.
D
Energy flows from higher thermal energy to lower thermal energy.
*select an answer for all questions
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