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Explain, giving one example of the following chemical change:
Thermal dissociation
Concept: undefined >> undefined
Explain, giving one example for each of the following chemical changes:
Displacement
Concept: undefined >> undefined
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(a) What is synthesis?
(b) What kind of chemical reaction is synthesis? Support your answer by an example.
Concept: undefined >> undefined
Decomposition brought about by heat is known as thermal decomposition. What is the difference between thermal dissociation and thermal decomposition?
Concept: undefined >> undefined
(a) Define the neutralization reaction with an example.
(b) Give a balanced equation for this reaction.
(c) Give three applications of neutralization reactions.
Concept: undefined >> undefined
State the type of reactions for the following represent and balance the ones that are not balanced.
2HgO → 2Hg + O2
Concept: undefined >> undefined
State the type of reactions for the following represent and balance the ones that are not balanced.
Fe + CuSO4→ FeSO4 + Cu
Concept: undefined >> undefined
State the type of reactions for the following represent and balance the ones that are not balanced.
PbO2 + SO2→ PbSO4
Concept: undefined >> undefined
State the type of reactions for the following represent and balance the ones that are not balanced.
2KClO3→ 2KCl + 3O2
Concept: undefined >> undefined
State the type of reactions for the following represent and balance the ones that are not balanced.
2H2O2→ 2H2O + O2
Concept: undefined >> undefined
State the type of reactions for the following represent and balance the ones that are not balanced.
KNO3 + H2SO4 → HNO3 + KHSO4
Concept: undefined >> undefined
State the type of reactions for the following represent and balance the ones that are not balanced.
CuO+H2→ Cu+ H2O
Concept: undefined >> undefined
State the type of reactions for the following represent and balance the ones that are not balanced.
CaCO3→ CaO+ CO2
Concept: undefined >> undefined
State the type of reactions for the following represent and balance the ones that are not balanced.
NH4Cl → NH3 + HCl
Concept: undefined >> undefined
State the type of reactions for the following represent and balance the ones that are not balanced.
PbO + 2HNO3→ Pb(NO3) + 2H2O
Concept: undefined >> undefined
State the type of reactions for the following represent and balance the ones that are not balanced.
AgNO3 + NaCl → AgCl + NaNO3
Concept: undefined >> undefined
Match the following:
|
a. Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g) |
i. Photochemical decomposition |
|
b. \[\ce{2AgCI(s) ->[Sunlight] 2Ag(s) + CI2(g)}\] |
ii. Thermal decomposition |
|
c. \[\ce{2KCI ->[Electricity] 2K + CI2}\] |
iii. Displacement reaction |
|
d. \[\ce{2HgO(s) ->[\Delta] 2Hg(s) + O(g)}\] |
iv. Electrolytic decomposition |
Concept: undefined >> undefined
Multiple choice:
The reaction BaCl2(aq) + H2SO4(aq) → BaSO4(s) + 2HCl(aq) is
Concept: undefined >> undefined
What is a double displacement reaction?
Concept: undefined >> undefined
Give an example of double displacement reaction, where a gas is evolved.
Concept: undefined >> undefined
