He contains the largest number; Fe contains the smallest number.
One mole of anything contains the same number (Avogadro’s number) of particles as one mole of anything else, so all we must do is decide which sample contains the most moles.
Moles = mass/molar mass or n = m/MM
Thus,
No. of atoms ∝ n ∝ 1/MM.
The element with the smallest molar mass, He, has the largest number of atoms.
The element with the largest molar mass, Fe, has the smallest number of atoms.
The answer is b it will always be equal
The magnesium dissolves to form magnesium chloride and hydrogen gas is released.
Mg + 2HCl -----> MgCl2 + H2(g).
Answer: OPTION, D
Explanation:
It is an example for ionic salt and has Calcium ion and sulfate ion.
Hence it's name is Calcium sulfate.
Calcium sulfoxide does not exist.
Calcium sulfite has CaSO3.