Practice Chemical Equations (1.7) - The Language of Chemistry

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10 questions

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6 sample questions

Question 1.
What do we call the substances that undergo a chemical reaction?
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Starts with 'R'
Question 2.
What is produced when H₂ reacts with O₂?
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Think of the liquid you drink.
3Question 3.
What is a chemical equation?
- A recipe for a reaction
- A symbolic representation of a reaction
- A physical change
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Think of it as the 'language' of chemistry.
4Question 4.
True or False: In a balanced chemical equation, the number of molecules on both sides must be the same.
- True
- False
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Balance atoms, not molecules.
Question 5.
Create a balanced chemical equation for the combustion of propane (C3H8).
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Remember to balance carbon, hydrogen, and oxygen atoms.
Question 6.
Explain how you would balance the reaction: N2 + H2 → NH3.
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Adjust coefficients for the number of nitrogen and hydrogen.

6 more questions in this section. Enroll free to practise them all.