Number of protons in an atom's nucleus?:

What is the name of this hydrocarbon?

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?