A neutralisation reaction takes place and produces a salt and water.
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What can be made by the reaction of a metal with an acid?
Some salts, this reaction produces hydrogen gas as well as a salt.
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How can salts be crystallised from solutions?
By evaporating off water.
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What metals will acids react with?
Metals that are above hydrogen in the reactivity series.
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What happens when acids react with very reactive metals?
The reactions of acids with very reactive metals, such as sodium and potassium, are too violent to be done safely.
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What do metals produce when they react with acids?
A salt and hydrogen gas.
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What is the word equation for an acid reacting with a metal?
Acid + metal → a salt + hydrogen.
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What is the symbol equation for an acid reacting with a metal?
H_2SO_4(aq) + Zn(s) → ZnSO_4(aq) + H_2(g)
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What are metal oxides and metal hydroxides?
Bases.
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What happens when an acid reacts with a base?
A neutralisation reaction takes place and a salt and water are produced.
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What is the word equation of when an acid reacts with a base?
Acid + base → a salt + water.
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What is the symbol equation for when an acid reacts with a base?
2HCl(aq) + MgO(s) → MgCl_2(aq) + H_2O(l)
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What can a neutralisation reaction be used for?
To make salts.
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How is a neutralisation reaction used to make a salt?
A metal, or base insoluble in water, is gradually added to the acid until all of the acid has reacted; the mixture is filtered to remove excess solid reactant leaving a solution of the salt; the water is evaporated so the salt crystallises.
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How are chlorides, nitrates and sulfates made?
Chlorides are made from hydrochloric acid, nitrates from nitric acid and sulphites from sulphuric acid.
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What metals other than zinc can safely react with an acid to produce a salt?
Any metal that is more reactive than hydrogen but less reactive than calcium, e.g. lead, tin, iron, aluminium, magnesium.
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Why do we add excess of the base when making a salt?
To use up all of the acid/to neutralise all of the acid.
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What products are formed when nitric acid reacts with magnesium?
Magnesium nitrate and hydrogen.
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What products are formed when hydrochloric acid reacts with copper hydroxide?
Copper chloride and water.
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**LEARN THE FORMULAE OF THE THREE IMPORTANT ACIDS HCl,HNO_3 AND H_2SO_4 TO HELP YOU WRITE THE FORMULAE OF THEIR SALTS**
**REMEMBER THAT WHEN THEY FORM SALTS HYDROGEN IS LOST FROM THE ACID SO THEY FORM CHLORIDES, NITRATES AND SULFATES**
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Other cards in this set
Card 2
Front
What can be made by the reaction of a metal with an acid?
Back
Some salts, this reaction produces hydrogen gas as well as a salt.
Card 3
Front
How can salts be crystallised from solutions?
Back
Card 4
Front
What metals will acids react with?
Back
Card 5
Front
What happens when acids react with very reactive metals?
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