Answer:
Hi there!
Your answer is:
A.
Explanation:
When frozen, water turns from a liquid to a solid! An example of this is a glass of water. You fill the glass with liquid tap water, and then put ice cubes in it. The ice cubes are solid and the tap water is liquid!
I hope this helps!
The formula is SrCl2. hope this helps
Answer:7 atom of carbon+5atom of hydrogen +3atom of nitrogen +6 atom of oxygen =21