What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?

CH₄ + 2O₂ → CO₂ + 2H₂O

From the equation, we know that methane and carbon dioxide have the same number of moles.

no. of moles of CO₂ produced = no. of moles of methane

= 4.5 × 10⁻³ ÷ (12 + 1×4)

= 2.8125 × 10⁻⁴

∴ mass of CO₂ = 2.8125 × 10⁻⁴ × (12 + 16×2)

= 12.375 × 10⁻³ g

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water pollution kills aquatic life. aquatic life includes algae and other plant life that use photosynthesis. photosynthesis takes   c02 out of the air.  

c02is a greenhouse gas.

i have no clue hope you find the answer