Label the following changes as Physical or chemical:
17
Two clear liquids mix and form a
white solid
18.
A pot of water begins to
boil
19.
melted
A sample of metal is
Paper burns in
20
oxygen
21.
peroxide
Metal forms bubbles on outside when placed in hydrogen
22
An ice cube is left on the counter and changes
into water
23
oxidized
A fence post is
A tree stump
24
rots
25
sugar is dissolved in
water