Chemical Reactions And Quantative Flashcards
0
Q
What makes a reaction exothermic
A
More energy is required to break bonds than to make them
1
Q
What makes a reaction endothermic
A
More energy is required to make new bonds than is used to break the old ones
2
Q
How does temp effect collision theory
A
Some collisions don’t have enough energy to break bonds, by increasing temp they do
3
Q
What do catalytic converters do
A
Combine co and h in burned petrol with o form air to form co2 and water vapour
4
Q
What metals are in catalytic converter
A
Platinum rhodium palladium
5
Q
What is relative atomic mass
A
Mass of atom compared to carbon
6
Q
Relative atomic mass of h
A
1
7
Q
Relative atomic mass of o
A
16
8
Q
Relative atomic mass of c
A
12
9
Q
Relative atomic mass of n
A
14
10
Q
Relative formula mass
A
Relative atomic mass of all atoms in substance added together
