(a)(i) Define entropy (ii) What term is used to describe a reaction in which heat is absorbed from the surrounding? (b) State two conditions that can lead t...

(a) State Gay Lussac's law of combining volumes (b) Hydrogen reacts with oxygen according to the following equation; 2H\(_{2(g)}\) + O\(_{2(g)}\) ---> 2H\(_2...

(a) List two products obtained when crude oil is refined (b)(i) What is the general formula for alkanols? (ii) State the type of reaction involved in the con...

(a) List two industrial uses of concentrated tetraoxosulphate (VI) acid (b) The diagram below represents the set-up for the electrolysis of dilute tetraoxosu...

Consider the reaction represented by the following Q equation: N\(_2\)O\(_{4(g)}\) \(\rightleftharpoons\) 2NO\(_{2(g)}\) \(\Delta\)H = +57.2KJmol\(^{-1}\) (a...

(a) Mention three chemical properties of chlorine (b) What type of reaction is represented by each of the following equations? (i) Mg\(_{(s)}\) + 2HCI\(_{(aq...

(a)(i) State the two main processes involved in the manufacture of oxygen from air (ii) Name the type of chemical bonding which exists between oxygen atoms i...

(a) List two properties of alpha particles. (b) X is an element which exists as an isotopic mixture containing 90% of \(^{39}_{19} X\) and 10% of \(^{41}_{19...

(a) State two properties of alkalis (b)(i) Why is tetraoxosulphate (VI) acid able to produce two types of salt? (ii) Write an equation for the reactior invol...