chemistry paper 3 0.0 / 5 ? ChemistryexperimentsASEdexcel Created by: ilayda ashkarCreated on: 27-04-14 11:31 23541 Across 1. this gas is produced when water and either a group 1 metal or calcium/strontium /barium react (8) 5. this gas turns damp red litmus paper blue (7) Down 2. this gas is produced when group 1 hydrogencarbonates are heated, and turns limewater milky (6, 7) 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) 4. colour of nitrogen dioxide (5)
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