Answer:
I think its A. It accepted radiation in a chemical reaction, hope this helped.
Answer:
its a chemical formula, it has numbers and symbols
Answer:

Explanation:
6.023 × 10²³ atoms of Ca are in 1 mol of Ca

9800 Newtons, this is correct I got 5/5 on the online school test
1. Particles in gas can MOVE AROUND QUICKLY
2. When you remove energy from particles they move SLOWER and the matter CONTRASTS