I think the answer is
B
Hope it helps
<u>Answer:</u> The correct answer is Option d.
<u>Explanation:</u>
According to mole concept:
1 mole of a substance contains number of particles.
This number is known as Avogadro's number.
The mass of 1 mole of a substance or Avogadro number of particles has the mass equal to molar mass of that substance.
Hence, the correct answer is Option d.
The 2 indicates the amount of hydrogen there is. In this case there are two atoms of hydrogen. The subscript will correspond to the “letter” (element symbol) right before it.
Answer:
NaCl
Explanation:
none of them. Salt presents NaCl
There are 9 H atoms in one molecule, so hydrogen is present in the greatest proportion by number of particles;
The ratio by particles is C:H:O:N = 8:9:2:1.