Nucleus is present at the centre of atom. It contains protons and neutrons. It is very small as compared to the atom.
It would be Microwaves. The cosmic microwave background (CMB, CMBR), in Big Bang cosmology, is electromagnetic radiation as a remnant from an early stage of the universe, also known as "relic radiation".
ANSWER IS CONDUCTION. HOPE THIS HELPED!
Calculate the number of moles reacted - 0.08 moles
Calculate the mass of nickel carbonate reacted - 0.08 * 119g
Calculate the mass of unreacted nickel carbonate - 12.0 - (0.08 * 119)g
1 mole of NiCO3 reacts with 1 mole of H2SO4
1023 molecules or atoms depending on substance
