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प्रश्न
Name the fundamental law that is involved in every equation.
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उत्तर
Fundamental laws which are involved in every equation:
A chemical equation consists of formulae of reactants connected by a plus sign (+) and arrow (→) followed by the formulae of products connected by the plus sign (+).
The sign of an arrow (→) is to read 'to form'. It also shows the direction in which the reaction is predominant.
The fundamental law followed by every equation is 'Law of Conservation of Mass'.
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संबंधित प्रश्न
Giving examples, state the difference between balanced and unbalanced chemical equations.
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Balance the following simple equation:
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Match the columns.
| Reactants | Products | Types of chemical reaction | ||
| 1. | MgH2 | → | Mg + H2 | Endothermic |
| 2. | 2H2S + SO2 | → | 3S + 2H2O | Oxidation |
| 3. | CaO + H2O | → | Ca(OH)2 + heat | Exothermic |
| Redox | ||||
