HELP!! Easy grade 11 questions but I forget

9. C₆H₁₂ + 9O₂ = 6CO₂ + 6H₂O

Number of moles of C₆H₁₂

*avogadro constant= 6.02×10^23

From the equation,

1 mol C₆H₁₂ : 6 mol CO₂

6.73×10^-4 mol C₆H₁₂ : 4.038×10^-3 mol CO₂

Number of moles of CO₂ = 4.038×10^-3 mol

10. (a) X+4(-2)=-2 X=+6

Oxidation state of Mo= +6

(b) X+1=0 X=-1

Oxidation state of H= -1

(c) 2X+3(-2)=0 X=+3

Oxidation state of Cr= +3

(d) 2X+3(-2)=-2 X=+2

Oxidation state of S= +2

the answer is minerals.