A white precipitate was formed when \( \mathrm{BaCl_2(aq)} \) was added to an aqueous solution of a salt X. The precipitate dissolved in dilute HCl with rap...

Which of the following sugars is a product of the condensation of monosaccharides?

(a) i. State two conditions used in the Haber process ii. Explain briefly the effect of increasing the pressure on the rate of reaction in the Haber process....

(a)(i) Define the first ionization energy of an element (ii) Consider the following table and use it to answer te question that follows Element Li Be b C N O...

a) (i) Define the term Avogadro's number. (ii) If 2.30 g of an oxide of nitrogen, x, contains \(3.01 x 10^{22}\) molecules, calculate the molar mass of x. (i...

The cleansing effect of soap is low in acidic water because of

The by-product of fermentation of sugar is

(a) Describe the observation that would be made when----- i. Sulphur is heated from room temperature till 1190C ii. 50% trioxonitrate(V) acid acts on copper ...

(a)i. Define an acid according to the Lewis concept ii. Give one example of a Lewis acid (b) Explain salting out in soap preparation (c) State the reagent an...