Chemical changes Flashcards
metal + acid
salt + hydrogen
acid + base
salt + water
acid + alkali
salt + water
acid + carbonate
salt + water +carbon dioxide
Bases
The oxide, hydroxide, or carbonate of a metal that will react with an acid, forming a salt as one of the products.
Group 1 ion charge
1+
Group 2 ion charge
2+
Group 7 ions charge
1-
Group 6 ions charge
2-
Group 5 ion charge
-3
Group 4 ion charge
+/-4
Group 3 ion charge
3+
ammonium ion charge
+1 NH4+
nitrate ions charge
-1 NO3-
sulphate ions
-2 SO4 2-
Name 3 strong acids
Hydrochloric acid, Nitric acid, sulphuric acid.
Name 3 weak acids
Ethanoic acid (in vinegar), Citric acid (in citrus fruit), carbonic acid
Ph of 0.1 H+ (aq) ions in mol/dm3
1
Concentration of H+ (aq) ions in mol/dm3 in ph 3
0.001 H+ (aq) ions in mol/dm3
Ph of 0.01 H+ (aq) ions in mol/dm3
2
Concentration of H+ (aq) ions in mol/dm3 in ph 4
0.0001 H+ (aq) ions in mol/dm3
