oxidise

Question 1

cr uses of word ‘oxidise’

Answer 1

lose e-, gain O or lose H

Question 2

2 1/2 equations oxidise hydrogen peroxide w MnO4-

https://www.chemguide.co.uk/inorganic/redox/equations.html#top

Answer 2

c only add: e-, wr, H
4 peroxide: H2O2->O2+2H+
4 manganese: MnO4–> Mn 2+ (4O to balance)
add wr: +4H2O
add H to balance, e- to neutral:MnO4+8H+ +5e-

Question 3

get ionic eq from: CL2 +2e- -> 2Cl-

Fe+2-> Fe3+ + e-

Answer 3

match e-: so 1x 1st eq (2e-) and 2x 2nd (so 2x 1e-)

Cl2+2Fe2+-> 2Cl- + 2Fe3+

Question 4

3 compounds w H bonding

Answer 4

wr, NH3, HFl

Question 5

2 features compound w H bond

Answer 5

H attached direct 2 v electro- compound so H more + a elec- more - than usual,
elec-ve compound has lone e- pair

Question 6

2eg coordinate bond

Answer 6

NH3+HCl->NH4Cl (H bonded to Cl-> coordinate bonded to N)

wr+HCl-> hydronium +Cl- (coordinate bonded 3rd H in H3O)

Question 7

df e- deficient

Answer 7

fewer e- than tt req 4 max stability

Question 8

df 2 mols joined together

Answer 8

dimer

Question 9

df hydrated ions

Answer 9

ions w wr mols bonded 2 them

Question 10

df coord bond

Answer 10

covalent bond where both e- come from 1 atom