![Trending Articles on Technical and Non Technical topics](/images/trending_categories.jpeg)
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
(a) Explain, with example, how the physical states of the reactants and products can be shown in a chemical equation.
(b) Balance the following equation and add state symbols:
Zn + HCl ------> ZnCl2 + H2
(c) Convey the following information in the form of a balanced chemical equation:
An aqueous solution of ferrous sulphate reacts with an aqueous solution of sodium hydroxide to form a precipitate of ferrous hydroxide and sodium sulphate remains in solution."
(a) The physical states of the reactants and products are shown by putting the state symbols in an equation.
For example: $Zn\ ( s) \ +\ H_{2} SO_{4} \ ( aq) \ \rightarrow \ ZnSO_{4} \ ( aq) \ +\ H_{2} \ ( g) +Heat$
(b) The balanced equation is given below:
$Zn\ ( s) \ +\ 2HCl\ ( aq) \ \rightarrow \ ZnCl_{2} \ ( aq) \ +\ H_{2} \ ( g)$
(c) An aqueous solution of ferrous sulphate reacts with an aqueous solution of sodium hydroxide to form a precipitate of ferrous hydroxide and sodium sulphate remains in the solution.
$FeSO_{4}( aq) \ +\ 2NaOH\ ( aq) \ \rightarrow \ Fe( OH)_{2} \ ( s) \ +\ Na_{2} SO_{4} \ ( aq)$
Advertisements