Precipitation reactions

Question 1

what is a precipitation reaction

Answer 1

when two ionic compounds react in solution to form a solid product, known as a precipitate, which is insoluble

Question 2

accronym to remeber a compound that contains this will always be soluble

Answer 2

SNAPE

Question 3

SNAPE

Answer 3

sodium (Na+), NNitrate (NO3-), Ammonium (NH4+), Potassium (K+), ethanoate (CH3COO-)

Question 4

ethanoate

Answer 4

CH3COO-

Question 5

how to remeber solubility rules accronym - always soluble

Answer 5

NAG SAG

Question 6

NAG SAG

Answer 6

nitrates, acetates, group 1, sulphates, ammonium, group 17

Question 7

acetate example

Answer 7

(C2H3O2 - )

Question 8

exceptions accronym to sulfates that are insoluble

Answer 8

PMS and CASTRO BEAR

Question 9

PMS

Answer 9

P = Pb 2+ (lead) M= mercury (Hg2+) S= silver (Ag+)

Question 10

castrobear

Answer 10

Ca2+ (calcium), Sr2+ (strontium), Ba2+ (barium)

Question 11

spectator ions

Answer 11

aqueous ions that do not change state throughout a reaction

Question 12

when are chloride ions containing compounds soluble

Answer 12

all except for siiilver chloride