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Northern IrelandScience (Single Award)Quick questions
Unit 2: Chemistry
Quick questions on Symbols, formulae and equations - CCEA GCSE Single Award Science
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 wrong charges when writing formulae?Show answer
Use the group to find the charge: Group 1 is +1, Group 2 is +2, Group 7 is -1, Group 6 is -2.
What is q1?Show answer
Write the formula of the compound made from and ions. [1 mark]
What is q2?Show answer
In a sealed flask, 10 g of a reactant fully reacts with 6 g of another. What is the total mass of products? [1 mark]
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