Unit - 5.1 Chemical Reaction and Chemical Equation — CHEMISTRY STD 7 — Question
ICSE BoardEnglish MediumSTD 7CHEMISTRYUnit - 5.1 Chemical Reaction and Chemical Equation3 Marks
Question
Define word equation for chemical reaction by giving an example.
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Answer
An chemistry, a word equation is a chemical reaction expressed in words rather than chemical formulas. A word equation should state the reactants (starting materials), products (ending materials), and direction of the reaction in a form that could be used to write a chemical equation. Word Equation Examples The chemical reaction 2H2(g) + O2(g) $\rightarrow$ H2O(g) would be expressed as hydrogen gas + oxygen gas $\rightarrow$ steam as a word equation or as “Hydrogen and oxygen react to form water” or “Water is made by reacting hydrogen and oxygen”.
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