chemistry paper 3 0.0 / 5 ? ChemistryexperimentsASEdexcel Created by: ilayda ashkarCreated on: 27-04-14 11:31 35214 Across 1. this gas is produced when group 1 hydrogencarbonates are heated, and turns limewater milky (6, 7) 4. this gas turns damp red litmus paper blue (7) 5. colour of nitrogen dioxide (5) Down 2. this gas is produced when water and either a group 1 metal or calcium/strontium /barium react (8) 3. this gas is produced when concentrated sulfiric acid and and a chloride react. it turns damp blue litmus paper red (with steamy fumes) (8, 8)
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