View source for Acid + Metal → Metal Salt + Hydrogen

==Key Stage 3==
===Meaning===
[[Acid + Metal → Metal Salt + Hydrogen]] is the general [[Chemical Equation|equation]] for a [[neutralisation]] [[Chemical Reaction|reaction]] between a [[metal]] and an [[acid]].

===About 'Acid + Metal' Reactions===
: '''[[Acid]] + [[Metal]]''' [[Chemical Reaction|reactions]] are [[exothermic]] so the there will be a [[temperature]] rise.
: The [[Chemical Reaction|reaction]] between a [[metal]] and an [[acid]] produces [[Hydrogen]] [[gas]] which can be seen bubbling from the [[metal]].
: The [[Chemical Reaction|reaction]] between a [[metal]] and an [[acid]] produces a [[Metal Salt]].

===Examples===
'''[[Acid]] + [[Metal]] → [[Metal Salt]] + [[Hydrogen]]'''
: [[Hydrochloric Acid]] + [[Lithium]] → [[Lithium Chloride]] + [[Hydrogen]]
: [[Hydrochloric Acid]] + [[Iron]] → [[Iron Chloride]] + [[Hydrogen]]

: [[Sulphuric Acid]] + [[Potassium]] → [[Potassium Sulphate]] + [[Hydrogen]]
: [[Sulphuric Acid]] + [[Aluminium]] → [[Aluminium Sulphate]] + [[Hydrogen]]

: [[Nitric Acid]] + [[Magnesium]] → [[Magnesium Nitrate]] + [[Hydrogen]]
: [[Nitric Acid]] + [[Titanium]] → [[Titanium Nitrate]] + [[Hydrogen]]

: [[Citric Acid]] + [[Sodium]] → [[Sodium Citrate]] + [[Hydrogen]]
: [[Citric Acid]] + [[Nickel]] → [[Nickel Citrate]] + [[Hydrogen]]

: [[Ethanoic Acid]] + [[Calcium]] → [[Calcium Ethanoate]] + [[Hydrogen]]
: [[Ethanoic Acid]] + [[Manganese]] → [[Manganese Ethanoate]] + [[Hydrogen]]

==Key Stage 4==
===Meaning===
[[Acid + Metal → Metal Salt + Hydrogen]] is the general [[Chemical Equation|equation]] for a [[neutralisation]] [[Chemical Reaction|reaction]] between a [[metal]] and an [[acid]].

===About 'Acid + Metal' Reactions===
: '''[[Acid]] + [[Metal]]''' [[Chemical Reaction|reactions]] are [[exothermic]] so the there will be a [[temperature]] rise.
: '''[[Acid]] + [[Metal]]''' [[Chemical Reaction|reactions]] occur when the [[metal]] is more [[Reactivity|reactive]] than [[Hydrogen]]. This means the [[metal]] can lose [[electron]]s more easily than [[Hydrogen]] can. 
: During an '''[[Acid]] + [[Metal]]''' [[Chemical Reaction|reaction]] the [[Hydrogen Ion (Chemistry)|H<sup>+</sup> ions]] gain an [[electron]] from the [[metal]] to [[product|produce]] [[Hydrogen]] [[gas]].

===Examples===
'''[[Acid]] + [[Metal]] → [[Metal Salt]] + [[Hydrogen]]'''
: [[Hydrochloric Acid]] + [[Lithium]] → [[Lithium Chloride]] + [[Hydrogen]]
<math>HCl(aq) + Li(s) → LiCl(aq) + H_2(g)</math>

: [[Hydrochloric Acid]] + [[Iron (III)]] → [[Iron (III) Chloride]] + [[Hydrogen]]
<math>6HCl(aq) + 2Fe(s) → 2FeCl_3(aq) + 3H_2(g)</math>

: [[Sulphuric Acid]] + [[Potassium]] → [[Potassium Sulphate]] + [[Hydrogen]]
<math>H_2SO_4(aq) + 2K(s) → K_2SO_4(aq) + H_2(g)</math>

: [[Sulphuric Acid]] + [[Aluminium]] → [[Aluminium Sulphate]] + [[Hydrogen]]
<math>3H_2SO_4(aq) + 2Al(s) → Al_2(SO_4)_3(aq) + 3H_2(g)</math>

: [[Nitric Acid]] + [[Magnesium]] → [[Magnesium Nitrate]] + [[Hydrogen]]
<math>2HNO_3(aq) + Mg(s) → Mg(NO_3)_2(aq) + H_2(g)</math>

: [[Nitric Acid]] + [[Titanium (III)]] → [[Titanium (III) Nitrate]] + [[Hydrogen]]
<math>6HNO_3(aq) + 2Ti(s) → 2Ti(NO_3)_3(aq) + 3H_2(g)</math>

: [[Ethanoic Acid]] + [[Sodium]] → [[Sodium Ethanoate]] + [[Hydrogen]]
<math>2CH_3COOH(aq) + 2Na(s) → 2CH_3COONa(aq) + H_2(g)</math>

: [[Ethanoic Acid]] + [[Calcium]] → [[Calcium Ethanoate]] + [[Hydrogen]]
<math>2CH_3COOH(aq) + Ca(s) → (CH3COO)_2Ca(aq) + H_2(g)</math>