Thermochemical Equations Answers
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1
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Which of these statements are true? Select all that apply.
A
The Hf for Br2(I) is 0 kJ/mol.
B
The Hf for He(I) is 0 kJ/mol.
C
The Hf for Hg(I) is 0 kJ/mol.
D
The Hf for Cl2(g) is 0 kJ/mol.
E
The Hf for N2(I) is 0 kJ/mol.
2
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6
It is important for scientists to know how much energy is given off or absorbed in a chemical reaction. Which options below would indicate an exothermic reaction?
A
H = –
B
H = +
C
Energy is considered a reactant in the reaction: A + B + energy C + D
D
Energy is considered a product in the reaction: A + B C + D + energy
E
Energy is released in the reaction.F
Energy is absorbed in the reaction.Did you find these answers helpful?
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