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Question
Differentiate between the following:
Synthesis reaction and a substitution reaction.
Solution
Synthesis and substitution reaction:
- Synthesis reaction: “Is a chemical reaction in which two or more elements or an element and a compound or two compounds combine to form a new compound.”
\[\ce{2Al + 3Cl2->2AlCl3}\] - Substitution reaction: “Is a chemical reaction takes place when an element or radical (more reactive) replaces another element in a compound.”
\[\ce{A + BC->B + AC}\]
\[\ce{Mg + CuSO4->Cu + MgSO4}\]
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RELATED QUESTIONS
(a) Define the neutralization reaction with an example.
(b) Give a balanced equation for this reaction.
(c) Give three applications of neutralization reactions.
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2HgO → 2Hg + O2
State the type of reactions for the following represent and balance the ones that are not balanced.
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State the type of reactions for the following represent and balance the ones that are not balanced.
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Match the following:
|
a. Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g) |
i. Photochemical decomposition |
|
b. \[\ce{2AgCI(s) ->[Sunlight] 2Ag(s) + CI2(g)}\] |
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|
c. \[\ce{2KCI ->[Electricity] 2K + CI2}\] |
iii. Displacement reaction |
|
d. \[\ce{2HgO(s) ->[\Delta] 2Hg(s) + O(g)}\] |
iv. Electrolytic decomposition |
State which of the substance given below evolve oxygen gas on thermal decomposition.
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| Heat on Copper Nitrate | Colour of acidic gas evolved |
The reaction can be classified as:
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