Flashcards
The Reactivity Series
Cards in this deck (13)
- 1Reactivity SeriesPlease Stop Leah Calling Me A Cute Zebra I Like Her Call Smart Goat
- 2Displacement ReactionsWhen the less reactive metal pushed out of compound by more reactive metal.
- 3Redox 1Oxidised - gains oxygen
Reduced - looses oxygen
OIL RIG
Reducing agent - substance which reduces something else
Oxidising agent - substance which oxidises something else - 4Spectator IonsEnds up with different partner but totally unchanged.
Mg(s) + CuO(s) --> MgO(s) + Cu(s)
Mg(s) + Cu(2+)(s) + O(2-)(s) --> Mg(2+)(s) + O(2-)(s) + Cu(s)
(Oxygen remains the same) - 5Ionic Equation from previous partMg(s) + Cu(2+)(s) --> Mg(2+)(s) + Cu(s)
Magnesium atoms turning into ions, copper ions turning into atoms. - 6Half EquationsReduction: Mg(s) --> Mg(2+)(s) + 2e(-)
Oxidation: Cu(2+) + 2e(-) --> Cu(s) - 7Redox 2Oxidation = loss of electrons
Reduction = gain of electrons - 8Reaction of metals with water Metals above hydrogen in R.S(up to lithium) metal + cold water --> metal hydroxide + hydrogen
metal + steam --> metal oxide + hydrogen - 9Calcium and cold waterGentle reaction.
Grey granules sink but carried back to surface as bubbles of hydrogen formed around them.
Mixture warm because heat produced.
CaOH product, not very soluble in water, some dissolves to give colourless solution, most white, insoluble solid. - 10Magnesium and cold waterAlmost no reaction.
If Mg very clean, few bubbles of hydrogen form but reaction soon stops.
Because Mg becomes coated with insoluble MgOH, water can't come in contact with Mg. - 11Reaction of metals with dilute acids Metals above hydrogen in R.S.metal + dilute sulphuric acid --> metal sulphate + hydrogen
metal + dilute hydrochloric acid --> metal chloride + hydrogen - 12Mg to Fe in R.S.Mg - vigorously w cold dilute acids, mixture very hot.
Al - slow to start, after warming, vigorously. Thin strong layer of Al2O3 but heating removes so Al reacts.
Zn and Fe - slowly in cold, rapidly on heating. - 13How to find approximate position of metal in R.S. using water and dilute acids1. Add very small piece of metal to cold water. If rapid reaction, metal about Mg in R.S.
2. If no reaction, add small amount of metal to dilute HCl or H2SO4. If no reaction in cold, warm carefully.
3. If no reaction, metal below H2 in R.S. If reaction, between Mg and H2.
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- IGCSE Chemistry (Chemistry) Flashcards on The Reactivity Series, created by Aarushi Jain on 27/10/2016.
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- Aarushi Jain
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