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Chemical Reactions and Equations — Science STD 10 — Question

Maharashtra BoardEnglish MediumSTD 10ScienceChemical Reactions and Equations1 Mark
Question
How will you indicate the following effects in a chemical equation?
  1. A solution made in water.
  2. Exothermic reaction.
  3. Endothermic reaction.
✓

Answer

  1. Aqueous solution is indicated by the symbol ‘aq’.
  2. An exothermic reaction is indicated by writing “+Heat” or “+Heat energy” or “+Energy” on the products side of an equation.
  3. An endothermic reaction is indicated by writing “+Heat” or “+Heat energy” or “+Energy” on the reactants side of an equation.

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