Additional

Question 1

Metal ions

Answer 1

Metal atoms will loose electrons and become positively charged

Question 2

Non metal ions

Answer 2

Non metal atoms may gain electrons and become negatively charged

Question 3

Ionic compounds

Answer 3

High melting points and only conduct electricity when molten

Question 4

What is a ionic lattice held together by

Answer 4

Electrostatic attraction

Question 5

Catalysts

Answer 5

Speed up reactions without being used up themselves

Question 6

Collision theory

Answer 6

To react atoms must collide with enough activation energy

Question 7

Ionic bonding

Answer 7

Atoms gain or loose electrons when they bond with other atoms becoming an ion

Question 8

Rate of reaction

Answer 8

rate of reaction = total amount of reactant used or product made ÷ time taken

Question 9

Changing temp in a reaction

Answer 9

If the temperature is increased:
the reactant particles move more quickly
they have more energy
the particles collide more often, and more of the collisions result in a reaction
the rate of reaction increases

Question 10

Changing the concentration or pressure in a reaction

Answer 10

If the concentration of a dissolved reactant is increased, or the pressure of a reacting gas is increased:
the reactant particles become more crowded
there is a greater chance of the particles colliding
the rate of reaction increases