Recent questions

0 votes

1 answer

Given a:b = 2:3 and b:c = 4:8 find a:b:c.

asked Jul 27, 2021 in Mathematics Form 1 by anony mous

0 votes

1 answer

A solution of hydrogen chloride in water reacts with zinc carbonate but a solution of the gas in methylbenzene does not. Explain

asked Jul 27, 2021 in Chemistry Form 2 by anonymous

0 votes

1 answer

The reaction between hot concentrated sodium hydroxide and chlorine gas produces sodium chlorate (V) as one of the products

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

Study the diagram below and answer the questions that follow:

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

Other than manufacture of sulphuric(VI) acid state two other uses of sulphur(IV) oxide.

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

Below is a set of apparatus that was used to obtain a dry sample of sulphur(iv)oxide gas

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

The flow chart below shows some industrial processes. Use it to answer the questions that follow

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

Study the diagram below and answer the questions that follow

asked Jul 27, 2021 in Chemistry Form 2 by anonymous

0 votes

1 answer

The grid below shows a part of the periodic table. The letters do not represent the actual symbols. Study it and answer the questions that follow.

asked Jul 27, 2021 in Chemistry Form 2 by anonymous

0 votes

1 answer

Describe how burning can distinguish CH2CH2 from CH3CH3

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

0 votes

1 answer

Study the flow diagram below and then answer the questions that follow.

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

Draw and name two isomers of Pentane()

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

Air was passed through several reagents as shown below

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

0 votes

1 answer

The diagram below shows the relationship between the physical states of matter.

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

0 votes

1 answer

The curves below represent the variation of temperature with time when pure and impure samples of a solid were heated separately.

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

0 votes

1 answer

In an experiment 3.36g of iron fillings were added to excess copper (II) sulphate. Calculate the mass of copper that was deposited. (CU= 63.5, Fe = 56)

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

The structure of two molecules of water can be represented as shown below.

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

0 votes

1 answer

Give two applications of chromatography?

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

0 votes

1 answer

What is paper chromatography?

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

0 votes

1 answer

A piece of burning magnesium ribbon was plunged into a gas jar containing sulphur (IV) oxide.

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

Page:

« prev
1
...
230
231
232
233
234
235
236
...
319
next »

...