IGCSE /Grade 8
Science MCQ Based On Word equation for a common reaction
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IGCSE Grade 8 Science Word equation for a common reaction
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calcium carbonate + hydrochloric acid → calcium chloride + water + carbon dioxide copper carbonate + hydrochloric acid → copper chloride + water + carbon dioxide
there are 6 main indication
Na2CO3(aq)+HCl(aq)→2NaCl (aq)+H2O(l)+CO2(g)
In neutralisation reaction, there is a change in pH.
When Hydrogen and oxygen reacts together, gives water
A precipitate is formed when silver nitrate + calcium chloride → silver chloride + calcium nitrate
CuSO4+H20+CO2
Zn → Zinc, S → Suphur and ZnS → Zinc Sulphide
We talk about total masses
MgCl 2(aq) + H 2(g)
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