Thermochemistry
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Science
10th Grade
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27 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a reaction releases heat to the surroundings it is __________
exothermic
endothermic
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a reaction has a ΔH = - 25 J
endothermic
exothermic
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A reaction that feels cold to the touch
endothermic
exothermic
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
a reaction where products are lower in energy than reactants
Endothermic
Exothermic
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
the amount of heat necessary to raise 1gram of a substance 1oC
Enthalpy
Specific heat
Heat of formation
heat of reaction
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The part of the universe that is being studied
system
Surroundings
internal energy
work
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The sum of all the possible forms of energy of all atoms, molecules and ions in a system
system
surroundings
internal energy
work
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