AT States of matter 1 a) Kristina wanted to provide evidence that matter is made of particles, so she set up a
glass tube as shown below. A white ring formed in the position indicated.
1 m
m
d or create
kas done
white ring
cotton wool soaked in
concentrated
ammonia solution
cotton wool soaked in
concentrated
hydrochloric acid
nments
i) Name the compound that makes up the white ring.