Recent questions without a selected answer

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1 answer

A donkey and a horse can breed and produce a young one called a mule. Explain why they do not belong to the same species.

asked Aug 30, 2021 in Biology Form 1 by anony mous

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3 answers

Define the following terms. Taxon and Taxonomy

asked Aug 30, 2021 in Biology Form 1 by anony mous

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1 answer

Write an equation to show the effect of heat on:

asked Aug 30, 2021 in Chemistry Form 1 by anony mous

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3 answers

State three methods of preventing rusting.

asked Aug 30, 2021 in Chemistry Form 1 by anony mous

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1 answer

State three conditions necessary for rusting.

asked Aug 30, 2021 in Chemistry Form 1 by anony mous

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1 answer

The table below shows the PH values of solutions I, II, III and IV.

asked Aug 30, 2021 in Chemistry Form 1 by anony mous

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2 answers

The table below shows some properties of substances D, F and E. Study it and answer the questions that follow.

asked Aug 30, 2021 in Chemistry Form 2 by anony mous

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1 answer

The table below gives the energy required to remove the outermost electron for some group I elements.

asked Aug 30, 2021 in Chemistry Form 2 by anony mous

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1 answer

The diagram below shows the physical state of matter. Study it and answer the questions that follow.

asked Aug 30, 2021 in Chemistry Form 1 by anony mous

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1 answer

What is an impurity?

asked Aug 30, 2021 in Chemistry Form 1 by anony mous

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1 answer

The table below gives the number of electrons, protons and neutrons in substances X, Y and Z. Study it and answers the questions that follow.

asked Aug 30, 2021 in Chemistry Form 2 by anony mous

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1 answer

The grid below is part of the periodic table. Use it answer the questions that follow. (The letters are not the actual symbols of the elements).

asked Aug 30, 2021 in Chemistry Form 2 by anony mous

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6 answers

Give two allotropes of carbon.

asked Aug 30, 2021 in Chemistry Form 2 by anony mous

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1 answer

What is meant by an allotrope?

asked Aug 30, 2021 in Chemistry Form 2 by anony mous

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1 answer

The diagram below illustrates a method of preparing salts by direct synthesis.

asked Aug 30, 2021 in Chemistry Form 2 by anony mous

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1 answer

Apart from direct synthesis name two other methods of salt preparation.

asked Aug 30, 2021 in Chemistry Form 2 by anony mous

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1 answer

Define the term salt.

asked Aug 30, 2021 in Chemistry Form 2 by anony mous

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1 answer

In terms of structure and bonding, explain the following observation. Melting point of chlorine is lower than that of sulphur.

asked Aug 30, 2021 in Chemistry Form 2 by anony mous

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1 answer

In terms of structure and bonding, explain the following observation. The melting point of water H2O is higher than that of H2S.

asked Aug 30, 2021 in Chemistry Form 2 by anony mous

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1 answer

Describe an experimental procedure that can be used to extract oil from nut seeds

asked Aug 30, 2021 in Chemistry Form 1 by anony mous

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