Answer:
Na-O
Be-S
Explanation:
ionic bonds= metal and non metal
Answer:
hydrate
Explanation:
when a hydrate is heated,it changes color due to the exothermic reaction taking place.the structure of the complex changes but not entirely.this result in the sample to to not dissolve completely and we can observe the small traces of the sample.
Answer:
Putting salt on the ground to melt ice or snow I mean.
Explanation:
