It depends on how many molecules of HCl you have. In one molecule of HCl there are 2 atoms present.
Hydrogen chloride molecule (HCl) has two atoms.
Atomic mass for carbon,hydrogen and oxygen are 12,1 and 16 respectively.since the molecular formula of vitamin K is C31H46O2, then the respective atomic mass for each element are substituted in the molecular formula. That is,the total number of carbon present is 12 multiplied by 31 which gives 372,the total number of hydrogen present is 1 multiplied by 46 which gives 46,and finally the total number of oxygen present is 16 multiplied by 2 which gives 32.The total addition of all these gives the molecular mass 450g. answer 450.7
Sodium chloride, because it will dissolve in water with almost total ionization.
chlorine atom has 17 electrons when it accepts one more it becomes chloride ion so chloride has total 18 electrons, isoelectronic with Argon.
3 total, One Oxygen and Two Hydrogen (H2O)
3 total - 2 Hydrogen & 1 Oxygen Hence H20
8
In water molecules there are 2 atoms of hydrogen of and 1 atom of oxygen present. each hydrogen atom shares 1 electron with the oxygen atom. So the total number of electrons shared with oxygen are 2,total no. of electrons shared by hydrogen is 2 and the total no. of electrons shared by each hydrogen atom is 1.
55
Gene pool
7. Copper, Hydrogen, Sulfur, and 4 oxygens.
For neutral atoms, the electron number is always the same as the proton number.For ions, charged atoms, the proton number is different than the electron number by the charge (e.g. a hydrogen ion, H(+1) has 1 proton and 0 electrons, 1 more proton than electrons).