Balanced equations and reacting masses

Balanced equations and reacting masses Quiz

Edexcel A-Level Chemistry: Quiz

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5 questions, one answer each

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  1. 1. In a balanced equation the coefficients tell you:

    • A. The masses of the substances
    • B. The mole ratio of the substances
    • C. The charges on the ions
    • D. The volumes of solutions

  2. 2. Which species is a spectator ion in Pb(NO₃)₂(aq) + 2KI(aq) → PbI₂(s) + 2KNO₃(aq)?

    • A. Pb²⁺
    • B. I⁻
    • C. NO₃⁻
    • D. PbI₂

  3. 3. What volume of CO₂ forms at RTP from 0.0500 mol of CaCO₃ with excess acid? (24.0 dm³ mol⁻¹)

    • A. 0.480 dm³
    • B. 2.40 dm³
    • C. 0.600 dm³
    • D. 1.20 dm³

  4. 4. What is the amount of HCl in 50.0 cm³ of 0.200 mol dm⁻³ solution?

    • A. 0.0100 mol
    • B. 10.0 mol
    • C. 0.250 mol
    • D. 0.00400 mol

  5. 5. Magnesium is added to copper(II) sulfate solution. Which is observed?

    • A. White precipitate forms
    • B. Solution turns from blue to colourless as copper is deposited
    • C. Gas is given off and solution stays blue
    • D. Yellow precipitate forms

Quiz