9 e rcts of metals & metal cmpds (whs)
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TRANSCRIPT
08/04/23
Reactions of metals Reactions of metals and metal compoundsand metal compounds
08/04/23Testing for hydrogen and Testing for hydrogen and saltssalts
“POP”
1) Testing for hydrogen:
2) Testing for a salt:
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Reactions of metals with acidsReactions of metals with acids
Copy and complete the following reactions:
1) Calcium + hydrochloric acid
2) Zinc + hydrochloric acid
3) Iron + hydrochloric acid
4) Lithium + sulphuric acid
METAL + ACID SALT + HYDROGEN
e.g. magnesium + hydrochloric acid magnesium chloride + hydrogen
MgH Cl Mg
Cl
ClH
H
H Cl
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Testing for carbon dioxideTesting for carbon dioxide
Gas
Limewater turns milky/cloudy
Limewater
08/04/23Reactions of metals carbonates with Reactions of metals carbonates with acidacid
A metal carbonate is a compound containing a metal, carbon and oxygen.
METAL CARBONATE + ACID SALT + CARBON DIOXIDE + WATER
Copy and complete the following reactions:
1) Magnesium carbonate + hydrochloric acid
2) Calcium carbonate + hydrochloric acid
3) Sodium carbonate + sulphuric acid
Mg H ClMg
Cl
Cl
HH
H Cl
C
O
O
OO
OO
C
08/04/23Reactions of metal oxides with Reactions of metal oxides with acidacidA metal oxide is a compound containing a metal and oxide. They are
sometimes called BASES. For example:
Mg O NaNa
O
O
Al
AlO
O
Magnesium oxide
Sodium oxide Aluminium oxideMETAL OXIDE + ACID SALT + WATER
Copy and complete the following reactions:
1) Magnesium oxide + hydrochloric acid
2) Calcium oxide + hydrochloric acid
3) Sodium oxide + sulphuric acid
Mg OH Cl
Mg ClCl
HH OH Cl
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Neutralisation reactionsNeutralisation reactionsA neutralisation reaction occurs when an acid reacts with an alkali. An alkali is a metal oxide or metal hydroxide dissolved in water.
ACID + ALKALI SALT + WATER
NaClH
H OH ClNa O
H
Copy and complete the following reactions:
1) Sodium hydroxide + hydrochloric acid
2) Calcium hydroxide + hydrochloric acid
3) Sodium hydroxide + sulphuric acid
4) Magnesium hydroxide + sulphuric acid