Stuff I dont know

Question 1

Describe Ammonium chloride

Answer 1

Compound of ammonia containing the chloride radical
When heated undergoes thermal decomp to form ammonia and chloride
Recombine at cooler parts
Sublimination - same ammonium chloride is re obtained

Question 2

Why does reactivity of halogens decrease as you go down the group

Answer 2

Atomic radius decreases so nuclear attraction decreases which makes losing an electron easier and harder to gain an electron
Atoms get bigger reducing attraction

Question 3

Why does redox get stronger for group 2

Answer 3

IE decreases so its easier to lose an electron

Question 4

Why does redox get weaker for halogens?

Answer 4

IE decreases so its easier to lose an electron and therefore harder to gain an electron

Question 5

Describe electronegativity down a group

Answer 5

Decrease due to IE - decrease in nuclear attraction

Question 6

Describe electronegativity across a period

Answer 6

Increase due to nuclear attraction increasing and so does the attraction between shared electrons