q10 e11v05 Which chemical equation is balanced?

Which chemical equation is balanced? ⚖️

Butane combustion 🔥 Word equation:

Butane + Dioxygen → Carbon dioxide + Water

Chemical equations:

A) C₄H₁₀ + 7O₂ → 4CO₂ + 5H₂O
B) C₄H₁₀ + 4O₂ → 4CO₂ + 5H₂O
C) 2C₄H₁₀ + 13O₂ → 8CO₂ + 10H₂O

Hint 💡:
a) Write the calculations if the multiplication does not involve 1.
A red number, or normal number, multiplied by a blue number, or subscript number.
Example 1: 4 × 2 = 8
Example 2: For 1 × 4 = 4, you may answer 4.
b) You may use the symbol * instead of the multiplication sign ×.

Reactants	Products
C →	C →
H →	H →
O →	O →

Reactants

Products

C → 

H → 

O → 

Reactants	Products
C →	C →
H →	H →
O →	O →

Reactants

Products

C → 

H → 

O → 

Reactants	Products
C →	C →
H →	H →
O →	O →

Reactants

Products

C → 

H → 

O → 

1*4=4 1×4=4 4 1 × 4 = 4 4*1=4 4×1=4 4 4 × 1 = 4 1*10=10 1×10=10 10 1 × 10 = 10 5*2=10 5×2=10 5×2=10 5 × 2 = 10 7*2=14 7×2=14 7×2=14 7 × 2 = 14 4*2+5*1=13 4×2+5×1=13 4×2+5=13 4*2+5=13 4 × 2 + 5 × 1 = 13 1*4=4 1×4=4 4 1 × 4 = 4 4*1=4 4×1=4 4 4 × 1 = 4 1*10=10 1×10=10 10 1 × 10 = 10 5*2=10 5×2=10 5×2=10 5 × 2 = 10 4*2=8 4×2=8 4×2=8 4 × 2 = 8 4*2+5*1=13 4×2+5×1=13 4×2+5=13 4*2+5=13 4 × 2 + 5 × 1 = 13 2*4=8 2×4=8 2×4=8 2 × 4 = 8 8*1=8 8×1=8 8 8 × 1 = 8 2*10=20 2×10=20 2×10=20 2 × 10 = 20 10*2=20 10×2=20 10×2=20 10 × 2 = 20 13*2=26 13×2=26 13×2=26 13 × 2 = 26 8*2+10*1=26 8×2+10×1=26 8×2+10=26 8*2+10=26 8 × 2 + 10 × 1 = 26 C

Which chemical equation is balanced? ⚖️

📊 RESULT: