Answer:
A compound has atoms of different elements chemically joined together They can't be separated without a chemical reaction.
Answer:
poisoning, breathing problems, skin rashes, allergic reactions, allergic sensitisation, cancer, and other health problems from exposure.
Explanation:
many hazardous chemicals are also classified as dangerous goods.
Answer:
Mass: 981.0 g
Density: 5.61 g/cm^3
Hardness: = 2.5 - 3
Unknown material: Chalcocite
Explanation:
Fluorine (F) will have properties similar to Bromine (Br) because it belongs to the same group as Bromine.