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Practice for your GCSE Maths exams by completing these past paper questions. Free online resources & worksheets to help you revise for GCSE maths.
Balancing chemical equations (KS3/GCSE) – Answers © www.chemistrytutor.me 2018 Page 3 of 3 38. Fe 2 O 3 + 3CO -> 2Fe + 3CO 2 39. 2H 3 PO 4 + 3BaO -> Ba
Everything you need for GCSE Chemistry revision, from past papers and revision pages, to revision cards and exam questions by topic.
* Cherry Hill Tuition presents a list of all the formula and data sheets for the GCSE and A Level exams for Maths, Chemistry and Physics by the 5 different exam boards that conduct these examinations.
1) Aluminium is extracted from aluminium oxide as shown. Calculate the mass of aluminium that can be formed from 1020 g of aluminium oxide. = 10.0 mol. 2) Calculate the mass of oxygen needed to react 10.0 g of calcium to form calcium oxide. 3) What mass of propane could burn in 48.0 g of oxygen? moles O2 = .
relative formula mass of desired product relative formula mass of all reactants (sum of) Energy (waves) ∆E = h ν ∆E = change in energy (J) h = planks constant (6.62 x 10-34 J s-1) c = ν λ c = speed of light (3 x 108 m s-1) ν = frequency (Hz, s-1) λ = wavelength, m V i C i = V f C f Relative Atomic Mass A r E cell
9-1 GCSE Chemistry Ionic Equations – Answers © www.chemistrytutor.me Page 2018 1 of 3 NB: ‘net ionic’ means the ionic equation with spectator ions cancelled. 1. HNO 3(aq) + NaOH (aq) → NaNO 3(aq) + H 2 O (l) ionic: H+ (aq) + NO 3-(aq) + Na + (aq) + OH-(aq) → Na+ (aq) + NO 3-(aq) + H 2 O (l) net ionic: H+ (aq) + OH-(aq) → H 2 O (l ...
