topic 4 revision part 2 (group 2)

Question 1

Oxides

O2

Answer 1

Crystalline solid
dissolves in water forms hydroxide
high bp/mp

Question 2

hydroxide

OH-

Answer 2

white solid
slightly soluble
hydroxides are insoluble
high mp/pb

Question 3

sulfates

Answer 3

pale white powder
soluble in water
high mp/bp

Question 4

group 2 flame tests

Answer 4

magnesium - colourless
calcium - orange/red
beryllium - colourless
strontium - red
barium - green