Chemistry
Represent the addition of dilute sulphuric acid to zinc by means of a chemical equation. State the function of the arrow between the reactants and products.
Related Questions
Explain the term 'chemical reaction' with special reference to – 'reactants' and 'products'.
A chemical reaction is generally accompanied by certain external indications or characteristics. These include change of –
(a) color
(b) state
(c) smell
(d) evolution of gas
(e) formation of precipitate
(f) evolution or absorption of heat.
With reference to change of color – state the change in color seen when the following are heated –
(i) copper carbonate
(ii) zinc carbonate
(iii) mercury [II] oxide
(iv) lead [IV] oxide
Give a balanced equation for addition of iron to copper [II] sulphate solution. State the change in color seen.