AnswersCR Chemistry S1 Q3050OXThermochemical EquationsQuestion 6
6
AssignmentMultiple Select

Thermochemical Equations

Question 6 • *CR Chemistry S1 [Q3050OX]

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?H = –H = + Energy is considered a reactant in the reaction: A + B + energy C + DEnergy is considered a product in the reaction: A + B C + D + energyEnergy is released in the reaction.Energy is absorbed in the reaction.

Answer
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.

Explanation

An exothermic reaction releases energy to its surroundings, so its enthalpy change is negative (ΔH < 0). Energy can be written on the product side of the reaction because it is produced, and the reaction is described as releasing energy. Thus, the correct choices are “H = –,” energy as a product, and energy released.

AI-written and checked against the verified answer.

Previous
Back to All Questions

More from this Course

Assignment
20 verified answers

Instruction

Assignment
7 verified answers

Thermochemical Equations

Assignment
6 verified answers

Thermochemical Equations