Chemistry: Year 10 Term 2: Bond Energy Calculations

When more energy is released to make bonds than used to break them, what is the reaction? (1)
Exothermic
1 of 9
When more energy is used to break bonds than released to make them, what is the reaction? (1)
Endothermic
2 of 9
Define 'bond energy' (2)
The energy needed to break the bond between two atoms
3 of 9
How is the energy change calculated? (3)
(energy needed to break reactant bonds) - (energy needed to create product bonds)
4 of 9
A negative result means the reaction is what? (1)
Exothermic
5 of 9
A positive result means the reaction is what? (1)
Endothermic
6 of 9
General energy change equation = (2)
SHC x Mass x Temperature Change
7 of 9
SHC is always equal to what? (1)
4.2
8 of 9
1cm3 = ?g (1)
1
9 of 9

Other cards in this set

Card 2

Front

When more energy is used to break bonds than released to make them, what is the reaction? (1)

Back

Endothermic

Card 3

Front

Define 'bond energy' (2)

Back

Preview of the front of card 3

Card 4

Front

How is the energy change calculated? (3)

Back

Preview of the front of card 4

Card 5

Front

A negative result means the reaction is what? (1)

Back

Preview of the front of card 5
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