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  • John

    30 Sep 2026

    HI,  On this, can I confirm that in neutral conditions, they should write half equations using H+/H2O and that they do not need to use H2O/OH- at all when creating half equations (as basic conditions are not part of spec)? Thanks, John

    R3.2 Oxidation & reduction

  • Susan

    28 Sep 2026

    Thanks for your advice. I have put up a case on IB Answers

    R2.2 Rate of reaction & collision theory

  • Demet

    23 Sep 2026

    Thank you!

    R3.1 Neutralization reactions

  • Paul

    Site author
    22 Sep 2026

    That is a fair point, SusanAs temperature increases, the rate increases; the largest contributor to this change, by some margin, is the shift of the Maxwell-Boltzmann curve, which increases the probability of successful collisions...

    R2.2 Rate of reaction & collision theory

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