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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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2 answers

Define the following terms. Normal salt, Efflorescent salts and Deliquescent salts

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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1 answer

The set up below can be used to prepare oxygen gas. Study it and answer the questions that follow.

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

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0 answers

asked Aug 30, 2021 by anonymous

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a vertical spring of unstretched length 30 cm is clamped at its upper end when sand is placed in a pan attached to the lower end of the spring its length becomes 45cm when 20g mass is placed on top of the sand the length increases to 55cm determine the mass of the sand

asked Aug 30, 2021 in Physics Form 2 by Yousuf

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0 answers

diagram demonstrating collection of a sample of dry hydrogen gas

asked Aug 29, 2021 in Chemistry Form 1 by eliveranyangogmailcom

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5 answers

Give the condition and the reagent under the ethanol is converted to ethanoic acid

asked Aug 29, 2021 in Chemistry Form 4 by kagiri

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2 answers

What is a Galaxy?

asked Aug 28, 2021 in Geography Form 1 by Cymonahlastborn

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