Revision

Question 1

Acid and carbonate

Answer 1

Salt and water and CO2

Question 2

Acid and metal

Answer 2

Salt and hydrogen

Question 3

Decomposition reaction

Answer 3

Splits into 2 or more substances

Endothermic

Question 4

Combination

Answer 4

Combine to form product

Exothermic

Question 5

Combustion reaction

Answer 5

Gives off heat
Involves O2
Burning

Question 6

Exo vs endo

Answer 6

Exo- gives off heat releases

Endo- pulls in and holds heat from surrounding

Question 7

Acid and carbonate reaction

Answer 7

Salt and water and CO2

Question 8

Mole

Answer 8

Avogadros # of particles
6.02 times 10 to the power of 23
Need moles to compare substances

Question 9

Speed up a reaction

Answer 9

Higher temp, more particles will have sufficient energy
Higher concentration, more particles there to collide
Higher surface area, more space for reaction to take place
Add catalyst helps correct orientation

Question 10

Collision theory

Answer 10

Particles much collide sufficient energy to break old bonds and form new ones
Particles must collide with the correct orientation to allow them to rearrange and make new ones

Question 11

Neutralisation

Acid+base

Answer 11

Salt and water