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Chemical Reactions

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Which of the following is an example of a chemical reaction?

Mixing salt and water

Boiling water

Burning wood (correct)

Melting ice

What is the product of the chemical reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH)?

Carbon dioxide (CO2)

Water (H2O) (correct)

Salt (NaCl)

Oxygen (O2)

What happens to the mass of substances during a chemical reaction?

Mass decreases

Mass can either increase or decrease

Mass increases

Mass is always conserved (correct)

Chemical Reactions

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Questions and Answers

Which of the following is an example of a chemical reaction?

What is the product of the chemical reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH)?

What happens to the mass of substances during a chemical reaction?

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