What is the most important care while converting a word equation into a chemical equation?
Answer and explanation
Correct answer: Writing correct chemical formulae of all substances
When converting a word equation into a chemical equation, the first essential step is to write the correct formula for every reactant and product. Formulae must reflect the proper symbols, valencies and subscripts; a wrong subscript changes the substance itself. After that, coefficients can be added to balance atoms without changing formulae. Reactants are conventionally placed on the left and products on the right, so options B, C and D are incorrect.
Frequently asked questions
What is the correct answer to this question?
Writing correct chemical formulae of all substances
Why is this the correct answer?
When converting a word equation into a chemical equation, the first essential step is to write the correct formula for every reactant and product. Formulae must reflect the proper symbols, valencies and subscripts; a wrong subscript changes the substance itself. After that, coefficients can be added to balance atoms without changing formulae. Reactants are conventionally placed on the left and products on the right, so options B, C and D are incorrect.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.