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EnglandChemistryQuick questions
Topic 1: Key concepts in chemistry
Quick questions on Chemical formulae, balancing equations and conservation of mass - Edexcel GCSE Chemistry
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
Write the formula of aluminium sulfate, given and . [1 mark]
What is q2?Show answer
Balance: . [2 marks]
What is q3?Show answer
Explain why the mass of a sealed flask does not change during a reaction inside it. [2 marks]
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