AQA GCSE Combined Science: Trilogy · Higher · Chemistry Paper 1 Change Keep the marks you know.
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Hydrogen burns in oxygen to form water.
2 H 2 + O 2 → 2 H 2 O \mathrm{2H_{2} + O_{2} \rightarrow 2H_{2}O} 2 H 2 + O 2 → 2 H 2 O
A r A_r A r : H = 1, O = 16
Calculate the mass of water formed when 8.0 g of hydrogen burns completely.
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Sit Chemistry Paper 1 Higher, timed 8464/C/1H 1 hour 15 minutes 70 marks Atoms, bonding, quantitative chemistry, chemical and energy changes A full original paper in the real format. Every mark marked from your working.
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AQA GCSE Combined Science: Trilogy Higher, Chemistry Paper 1 8464/C/1H 1 hour 15 minutes 70 marks Atoms, bonding, quantitative chemistry, chemical and energy changes 6 papers · 420 marks. Each paper tests its own topics. Ideas from earlier topics can still be needed. Questions here are original practice, not past papers.
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