Red blood cells are formed by the bone marrow in the center cavity of the bones.
Mg(s) + 2HCl(aq) = H₂(g) + MgCl₂(aq)
v=300 ml=0.3 l
c=4 mol/l
n(HCl)=vc
m(H₂)/M(H₂)=n(HCl)/2
m(H₂)=M(H₂)vc/2
m(H₂)=2.0g/mol·0.3 l · 4mol/l /2 = 1.2 g
1.2 grams of hydrogen gas will be produced
Answer:
In ionic bond one element should be metal and next should be non metal. in covalent both element should be met Alice. if there valence electron is less than 4 than it is metal or more than 4 it is non metal.
