Chemistry All areas 3.5 / 5 based on 2 ratings ? ChemistryGCSEAll boards Created by: BethanCreated on: 17-03-10 12:03 Alkalis are substances that form OH (hydroxide) ions when they dissolve in water. 1 of 12 A ph of 7 is... 2 of 12 Neutral 3 of 12 A ph of 8-14 is... 4 of 12 Alkali 5 of 12 A ph of 0-6 is an... 6 of 12 Acid 7 of 12 Covalent substances do not conduct electricity 8 of 12 What can;t elkectricity pass through? 9 of 12 POSITIVE - negative electrode NEGATIVE - positive electrode 10 of 12 WHY? 11 of 12 Because opposite attracts =] 12 of 12
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