ICSE Class 8 Answered
how to know after reaction it will form hydrogen
Asked by vinodlucknow251 | 08 Mar, 2024, 14:27: PM
Expert Answer
Dear Student,
It is necessary to have basic theoretical knowledge about chemical reactions between different types of compounds.
For example,
1. Alkali metals react with hydracids to form hydrogen gas.
2Na + 2HCl → 2NaCl + H2
2. Metals can directly react with lukewarm or normal water to form hydrogen gas. The reaction can be vigorous like in the case of sodium.
Ca + 2H2O → Ca(OH)2 + H2
3. Methane when heated with water vapors at high temperatures (1000 °C), produce hydrogen
CH4 + Н2О → C + 2H2
Answered by | 11 Mar, 2024, 11:44: AM
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