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Metals and acids year 11 chemistry by Mind Map: Metals and
acids year
11
chemistry
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Metals and acids year 11 chemistry

what is the pH scale and how do indicators work?

What are the physical properties of metals?

conduct electricity and heat

malleable

bendy

ductile

drawn into a wire

sonorous

ringing sound when hit

high melting point

strong

How do metals react with oxygen?

booklet page 20 workbook page 17-19  

metals react with oxygen to form metal oxides

known as oxidation, corrosion, burning and in the case of iron...rusting

metal + oxygen --> metal oxide

How do metals react with water?

potassium - calcium react with water --> metal hydroxide + hydrogen gas

metal + water --> metal hydroxide + hydrogen gas

remaining metals react with steam only to form metal hydroxide + hydrogen gas

metal + steam --> metal oxide + hydrogen gas

How do metals react with acids?

potassium, sodium and magnesium react violently with acids to form metal salts + hydrogen gas

Aluminium doesn't react with acids as it has an oxide layer

copper - platnium will not react with acids

How do metal carbonates react with acids?

metal carbonates + acid --> metal salt + water + carbon dioxide gas

How do different metals react?

Displacement reactions.

a metal that is more reactive will displace another metal from its salt., iron + copper sulfate --> iron sulfate + copper

How can we change the rate of a chemical reaction?

surface area

smaller particles have larger surface area, so there is more surface exposed for collisions to occur.... greater number of collisions/second

temperature

higher temperature means particels hve more kinetic energy and move around more....more collisions/second

concentration

greater number of particles present mean more collisions/ second

catalyst

lowers average energy (activation energy)needed for pariticles to react...greater number of particles have reguired energy to react

when graphing the rate, the steeper the line the faster the rate of reaction.

The line is a curve as the rate of gas being produced decreases as the reaction proceeds as the reactants are being used up and so gas production slows.

Vvvvv

What is neutralisation?

when an acid and a base react together

resulting products are neutral, neither acid or base and have a pH=7

neutralisation reactions

metal hydroxide + acid --> metal salt + water

metal oxide + acid --> metal salt + water

metal carbonate + acid --> metal salt + water + carbon dioxide gas

metal reactivity series

what are the uses of metals?