Answer:
b. h2o (s)
Explanation:
The phase in which the compound is found is put in parenthesis so:
h2o (l) means water in liquid phase
h2o (s) means water in solid phase
h2o (aq) means water in aqueous solution, i.e. the compound dissolved in water, which doesn’t apply to water
h2o (sp) doesn’t exist
and h2o (g) means water in gas phase
