The answer I believe would be D) All of these
NaHCO3 is the required substance often used in antacid and is used in Soda Acid Fire Extinguisher.
It's "C" a sample of dust particles at 0 Pascals
Answer:
Formula weight of H₂O molecule is 18.02 amu.
Explanation:
Given data:
Formula weight of H₂O = ?
Atomic mass of H = 1.008 amu
Atomic mass of O = 16.00 amu
Solution:
Formula weight:
"It is the sum of all the atomic weight of atoms present in given formula"
Formula weight of H₂O = 2×1.008 amu + 1×16.00 amu
Formula weight of H₂O = 18.02 amu
Thus, formula weight of H₂O molecule is 18.02 amu.
Answer:
b
Explanation:
b/c proton + neutron=mass number and
mass number - proton= neutron