Answer: A
Explanation: Protons and neutrons form the nucleus of the atom, with electrons orbiting it.
The chemist the count the number of particles (Atoms, Molecules or Formula Unit) in a given number of moles of a substance by using following relationship.
Moles = # of Particles / 6.022 × 10²³
Or,
# of Particles = Moles × 6.022 × 10²³
So, from above relation it is found that 1 mole of any substance contains exactly 6.022 × 10²³ particles. Greater the number of moles greater will be the number of particles.
The correct answer is radiant, radiant that get transferred into chemical energy
The answer to 4 is A.
The answer to 5 is C.
1.49 moles of Al will be produced. Hope this helps you.