Answer: A
Explanation: Protons and neutrons form the nucleus of the atom, with electrons orbiting it.
I don’t know what you mean by classification exactly but it is a redox equation. The reactant side of carbon is losing hydrogen to form carbon dioxide. And oxygen is gaining hydrogen which gives you the water. Redox reactions are also known as combustion reactions.
Answer:
yes 4K + O2 ------>2K20 is true.
Answer:
salt is dull and brittle and conducts electricity when it has been dissolved into water, which it does quite easily.
Explanation:
transparent and colourless in crystalline form- rather like ice.
C) and d) are physical changes while b) is chemical
