METAL HYDROXIIDE PRECIPTATES

Question 1

if you add sodium hydroxide solution to

calcium, magnesium, aluminium

ions what is the color of the precipitate formed

Answer 1

a white precipitate

Question 2

if you add excess sodium hydroxide what precipitate will dissolve

Answer 2

aluminum precipitate

Question 3

when you react calcium nitrate with sodium hydroxide what 2 products are formed

Answer 3

sodium nitrate + calcium hydroxide

Question 4

what is the balanced symbol equation for the reaction between

calcium nitrate + sodium hydroxide —> sodium nitrate + calcium hydroxide

Answer 4

Ca(NO3)2 (aq) + 2NaOH —-> 2NaNO3 (aq) + Ca(OH)2 (s)

Question 5

if you add sodium hydroxide solution to

copper II (Cu2+)

ions what is the color of the precipitate formed

Answer 5

blue precipitate

Question 6

if you add sodium hydroxide solution to

iron II (Fe2+)

ions what is the color of the precipitate formed

Answer 6

green precipitate

Question 7

if you add sodium hydroxide solution to

iron (Fe3+)

ions what is the color of the precipitate formed

Answer 7

brown precipitate