Answer:
The thermal decomposition of sodium bicarbonate to produce sodium carbonate carbon dioxide and water. This reaction takes place at a temperature of 250-300°C(140-180°C).
Group 8
Group 8A (or VIIIA) of the periodic table are the noble gases or inert gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). The name comes from the fact that these elements are virtually unreactive towards other elements or compounds.
Explanation:
Chemical reactions can occur very slow or very fast depending on the following conditions:
- If the reactants are in solid phase, less surface area is exposed and the process proceeds very slowly. The exposed surface area is directly proportional to the rate of chemical reactions.
- If the concentration of the reactants are low. For gaseous systems, low pressure can inhibit the progress of chemical reactions.
- If the reaction is taking place at low temperature.
- No presence of a catalyst.
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The question does not provide the equation
Answer:-
72.89 grams
Explanation:-
The balanced chemical equation for this reaction is
CuSO4 + Fe --> FeSO4 + Cu
Molecular weight of CuSO4 = 63.55 x 1 + 32 x 1 + 16 x 4
= 159.55 gram
Atomic weight of Cu = 63.55 gram.
According to the balanced chemical equation
1 CuSO4 gives 1 Cu
∴159.55 gram of CuSO4 would give 63.55 gram of Cu.
183 gram of CuSO4 would give 63.55 x 183 / 159.55
= 72.89 grams of Cu
Answer:
A reaction in which one element replaces another element in a compound.
