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Questions and Answers
Which of the following is a chemical reaction?
Which of the following is a chemical reaction?
- Boiling water
- Melting ice
- Mixing salt and sugar
- Burning wood (correct)
What is the product of the chemical reaction between hydrochloric acid and sodium hydroxide?
What is the product of the chemical reaction between hydrochloric acid and sodium hydroxide?
- Salt
- Oxygen
- Carbon dioxide
- Water (correct)
Which of the following is a balanced chemical equation?
Which of the following is a balanced chemical equation?
- 2H2 + O2 -> 2H2O
- H2O -> H2 + O2
- CaCO3 -> CaO + CO2
- CH4 + 2O2 -> CO2 + 2H2O (correct)
