Write symbolic representation for the following word equation and balance them:
Iron sulphide + Hydrochloric acid (dilute)→Iron(II) chloride + Hydrogen sulphide
Important Questions on Language of Chemistry
Write symbolic representation for the following word equation and balance them:
Calcium oxide + Water → Calcium hydroxide
The substances which undergo chemical change are called_____
The substances formed as a result of a chemical reaction are called _____. (products / reactants)
During a chemical reaction, transfer of _____ takes place. (energy / solvent)
The basic condition necessary for a chemical reaction is _____. (close contact / heat)
In some chemical reactions, an insoluble _____ is formed when two solutions are mixed.
Write 'true' or 'false' for the following statements:
No new substance is formed during a chemical reaction.
Write 'true' or "false' for the following statements:
Hydrogen sulphide has rotten egg smell.
