Atomic mass. Which is the number of protons and neutrons combined.
Answer:
heat energy
Explanation:
water in the sun begins to get hot
That would be an amino acid. The

and -COOH is the functional group for a carboxylic acid hence AMINO ACID.
Answer: Work was 15 Joules
Explanation: Work W = force F · distance s
W = 5 N · 3 m
Answer:
a is write
Explanation:
Why are all ionic compounds crystalline in structure?
Ionic compounds are generally hard, but brittle. ... The repulsive forces between like-charged ions cause the crystal to shatter. When an ionic crystal breaks, it tends to do so along smooth planes because of the regular arrangement of the ions.