What is the reaction of an acid and metal carbonate?
Acid + metal carbonate ——> salt + water + carbon dioxide
What is the reaction between an acid and a metal oxide?
Acid + metal oxide ——> salt + water
What is the reaction between an acid and a metal hydroxide?
Acid + metal hydroxide ——> salt + water
What is the relationship between pH and concentration of H+ ions in a solution?
When pH changed by x then H+ ion concentration changes by a factor of 10 to the power of -x
What is the reaction between a metal and oxygen?
Metal + oxygen ——> metal oxide
What is the reaction between a metal and an acid?
Metal + acid ——> salt and hydrogen
What is the reaction between a metal and water?
Metal + water ——> metal hydroxide and hydrogen
What is an electrolyte?
A liquid or solution that can conduct electricity because ions are free to move
What happens at the cathode in the electrolysis of molten ionic compounds?
The positive metal ions are attracted to the cathode
They are reduced and build up as a metal on the cathode
What happens at the anode in the electrolysis of molten ionic compounds?
The negative non metal is attracted to the anode
It becomes oxidised and is given off as a gas
What happens at the cathode in the electrolysis of aqueous ionic compounds?
If the metal is more reactive than hydrogen then the metal builds up, if metal is less reactive then hydrogen gas is produced
What happens at the anode in the electrolysis of aqueous ionic compounds?
If there is a halide present then halogen gas is produced, if there is no halide then oxygen gas and water are produced
What is the reactivity series?
Potassium
Sodium
Lithium
Calcium
Magnesium
Aluminium
Carbon
Zinc
Iron
Hydrogen
Copper
Silver
Gold
