Answer: Dynamic equilibrium
Explanation:
The answer is A. Table salt is a pure substance.
a compound in chemistry, is any substance that is formed when two or more chemical elements are chemically bonded together. A prime example of this is H20. You are combining hydrogen to oxygen, giving you a compund element. I hope this helps you. :)
Answer:
copper has 2+ ions in a sample of copper
The answer Is C.the layer of rock they're found in