Stoichiometry is the field of chemistry that is concerned with the relative quantities of reactants and products in chemical reactions. For example, when oxygen and hydrogen react to produce water, one mole of oxygen reacts with two moles of hydrogen to produce two moles of water
Answer:
2Mg(s) + O₂(g) → 2MgO(s)
Explanation:
2Ca(s) + Cl₂(g) → CaCl₂(s) (incorrect)
Ca(s) + Cl₂(g) → CaCl₂(s) (correct)
Li(s) + Cl₂(g) → 2LiCl(s) (incorrect)
2Li(s) + Cl₂(g) → 2LiCl(s) (correct)
2C(s) + O₂(g) → CO₂(g) (incorrect)
C(s) + O₂(g) → CO₂(g) (correct)
Answer:-
27.38%
Explanation:-
Molecular weight of sodium hydrogen carbonate NaHCO3
= 23 x 1 + 1 x 1 + 12 x 1 + 16 x 3
= 84 gram
Total sodium Na present in NaHCO3 = 23 x 1 = 23 gram
Percentage of sodium present=
Total sodium x 100/ (Total molecular weight)
= 23 x 100 / 84
= 27.38 %
The Olivine normally crystalizes first from the magma of the mafic minerals, It crystalizes at between 1200°C and 1300°C. when the temperature of magma drops and there is a silica still remains in the magma so the olivine reacts with this silica to form pyroxene.and by more cooling of the temperature of magma and there is a silica still remains in magma pyroxene change to amphibole, and amphibole to biotite.when the pyroxene strat to form the plagioclase feldspar also forms.