D. Strong ....................
The endocrine system functioning is especially implicated in disorders like HIV ,infection, cancer, and arthritis. is FALSE
but the correct answer is the immune functioning which is implicated in disorders like HIV infection , cancer , arthritis and type 1 diabetes .
To know more about immune system here
brainly.com/question/2664345
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Protostar
Then main phase so there are two possibilities:
1. Average size star (size of the sun)
Undergoes main phase, then becomes a red giant, then planetary nebula, then white dwarf.
2. Massive star
Undergoes main phase, then red supergiant, then supernova (star implodes) then the star becomes a neutron star OR if it was REALLY big a black hole.
Number of Moles are calculate by using following formula,
Moles = Mass / M.mass --- (1)
M.mass is calculated by adding the atomic masses of all elements present in molecule, Since, MgCl₂ contains one Mg (atomic mass = 24.3 g/mol) and two Cl atoms (atomic mass = 35.45 × 2 = 70.9 g/mol), So,
Molar mass = 24.3 g/mol + 70.9 g/mol
Molar Mass of MgCl₂ = 95.2 g/mol
Now, putting values in eq. 1,
Moles = 310 g ÷ 95.2 g/mol
Moles = 3.256 moles
