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The orange question was a calculation: A reaction has the rate equation: rate = k[A]²[B]. When [A] = 0.20 mol dm⁻³ and [B] = 0.10 mol dm⁻³, the rate is 4.0 x 10⁻³ mol dm⁻³ s⁻¹. Calculate k. ib chemistry question bank best
The best free resource for targeted revision. If you have a bad test result on a specific unit, go here and do 20 questions on just that unit. The difference between a grade 5 and a
Their questions are "bespoke," meaning they are written to mimic the IB style but aren't just copies of old exams. This is great if you’ve already memorized the past papers. When [A] = 0