Answer:
unknown fact I can't message anyone
Answer:
chemical changes
Explanation:
A chemical change is one in which a new kind of matter is formed. It is always accompanied by energy changes. The process is not easily reversible and hence, it is a permanent procedure.
Burning of charcoal produces a new kind of produces in the combustion process.
Both heating of copper(ii)carbonate strongly and zinc oxide will lead to a decomposition reaction in which new compounds are formed.
They are arranged by their atomic mass.
Answer:
B. People live longer than they used to
Explanation:
None of the other answers are correct.
