Answer:
Chemical
Explanation:
A chemical change is formed because the state of the substances can't be changed to its previous state. Therefore it's a chemical change only.
Answer:
0.153M
Explanation:
57.3/97.994 (molar mass)=0.585 moles of H3PO4
.0585/3.820L=0.153M
Changes in energy and formation of new substances.