Practice Summary (5.11) - Language of Chemistry

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10 questions

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4 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the chemical symbol for Oxygen?
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Think of the element's name.
Question 2.
What is the valency of Chlorine?
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Consider how many bonds it typically forms.
3Question 3.
What does atomicity refer to?
- The number of protons
- The number of atoms in a molecule
- The number of electrons
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Look at the definition given in the section.
4Question 4.
True or False: The symbol for Sodium is Na.
- True
- False
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Think about the elements' origins.
Question 5.
Given the reactants: 2Na + Cl₂ → ?, predict the product and balance the equation.
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Identify the product formed and maintain the balance.
Question 6.
Calculate the number of atoms in 5 molecules of H₂O.
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Multiply the number of molecules by the number of atoms in each.

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