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Introduction to Chemistry

SheelonChemistryScienceEnglishGrades 8-10Published Feb 10, 2026

Elements, compounds, reactions, and the periodic table.

12

questions

~5 min

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3

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Questions in this quiz

Play the first 3 free. The rest stay locked until you sign up.

  1. What is the chemical formula for water?

    Type Answer

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  2. Question 1 of 1

    How many elements are in the periodic table (approximately)?Tap an answer

    Multiple Choice

  3. What is the atomic number of carbon?

    Type Answer

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  1. An atom with more electrons than protons has what charge?Multiple Choice
  2. Table salt is composed of sodium and what other element?Type Answer
  3. The pH of pure water is 7True / False
  4. What is the chemical symbol for gold?Type Answer
  5. Which subatomic particle has no charge?Multiple Choice
  6. Acids have a pH value less than 7True / False
  7. What type of bond involves the sharing of electrons?Multiple Choice
  8. What is the most abundant gas in Earth's atmosphere?Multiple Choice
  9. The chemical formula NaCl represents what compound?Type Answer

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