PDF chapter test TRY NOW
Answer the following questions:
Answer variants:
(a). \(FeSO_4\)(s) \(\xrightarrow[]{Heat}\) \(Fe_2O_3\) + \(SO_2\)(g) + \(SO_3\)(g).
(b). \(CaO\)(s) + \(H_2O\)(l) \(\xrightarrow[]{Heat}\) \(Ca(OH)_2\)(aq).
(b). \(CaO\)(s) + \(H_2O\)(l) \(\xrightarrow[]{Heat}\) \(Ca(OH)_2\)(aq).
Al is the oxidizing agent. Al is more reactive than Mn.
We must balance a skeletal equation so as to ensure that the reaction follows ‘Law of conservation of mass’.
The reaction will take place in presence of darkness. This reaction is used in colour photography.
1. (a) Complete the following equation for the chemical reaction:
\(FeSO_4\)(s) \(\xrightarrow[]{Heat}\) \(Fe_2O_3\) + __________ + __________.
(b) What happens when water is added to quicklime (\(CaO\))? Write the chemical equation.
\(FeSO_4\)(s) \(\xrightarrow[]{Heat}\) \(Fe_2O_3\) + __________ + __________.
(b) What happens when water is added to quicklime (\(CaO\))? Write the chemical equation.
2. “We need to balance a skeleton chemical equation”. Give reason to justify the statement.
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