Chemical Reactions and Balancing Chemical Equations
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Choose the correctly balanced equation for the following reaction: Potassium + water → potassium hydroxide + hydrogen gas
2K + 2H₂O → 2KOH + H₂
What is a coefficient?
A whole number that appears in front of a compound or element in a balanced chemical equation.
Which of the following equations is balanced?
C₂H₅OH + 3O₂ -> 2CO₂ + 3H₂O
Conservation of matter means that:
Matter is never created nor destroyed.
Choose the correctly balanced equation for the following reaction: Sodium + water -> sodium hydroxide + hydrogen gas
2Na + 2H₂O -> 2NaOH + H₂