Recent questions in Chemistry

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1 answer

answer to electrical current passing through H2SO4 State and explain the change in mass that occur when following substances are separately heated in open crucibles [4 mks]

asked Aug 4, 2021 in Chemistry Form 3 by anony mous

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1 answer

The diagram shows electric current passing through dilute sulphuric (iv)acid

asked Aug 4, 2021 in Chemistry Form 2 by anony mous

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1 answer

Write down an ionic equation for the reaction between dilute hydrochloric acid and calcium carbonate

asked Aug 4, 2021 in Chemistry Form 3 by anony mous

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2 answers

Give two properties of aluminum that makes it very suitable for making cooking utensils

asked Aug 4, 2021 in Chemistry Form 4 by anony mous

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1 answer

Explain how you would obtain solid sodium carbonate from a mixture of lead II carbonate and sodium carbonate.

asked Aug 4, 2021 in Chemistry Form 2 by anony mous

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1 answer

An oxide of element F has the formulaF2O5

asked Aug 4, 2021 in Chemistry Form 3 by anony mous

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1 answer

The diagram shows the structures of two allotropes of carbon. Study them and answer the questions that follow

asked Aug 4, 2021 in Chemistry Form 2 by anony mous

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1 answer

20g of solid sodium hydroxide were dissolved in distilled water and made to 400cm3. 30cm3 of this solution required 27cm3 of dilute sulphuric (iv) acid for complete reaction. [Na=23 O=16 H=1] Determine

asked Aug 4, 2021 in Chemistry Form 3 by anony mous

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1 answer

X+ is an ion with electronic configuration 2,8,8. Identify element X

asked Aug 4, 2021 in Chemistry Form 2 by anony mous

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1 answer

When 0.288g of an oxide of metal M was reduced using suitable reducing agent, 0.256 of pure metal was formed. Determine the empirical formula of the oxide of the metal M. [M=64 O=16]

asked Aug 4, 2021 in Chemistry Form 3 by anony mous

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1 answer

Draw a dot and cross diagram showing the bonding in a molecule of calcium oxide. Name the type of bond.

asked Aug 4, 2021 in Chemistry Form 2 by anony mous

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1 answer

The figure shows a set-up by a form three student to prepare a certain gas

asked Aug 4, 2021 in Chemistry Form 1 by anony mous

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1 answer

The table below shows the relative atomic masses and the percentage abundance of the isotopes T1 and T2 of element T

asked Aug 4, 2021 in Chemistry Form 2 by anony mous

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1 answer

write the electronic configuration of calcium (atomic number 20) and magnesium (atomic number 12)

asked Aug 4, 2021 in Chemistry Form 2 by anony mous

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1 answer

Name another gas which is used with oxygen in welding

asked Aug 4, 2021 in Chemistry Form 1 by anony mous

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1 answer

I want to know the different between alchemist and chemistry

asked Aug 2, 2021 in Chemistry Form 1 by Pendomajani

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1 answer

A circuit consists of a battery, a metal wire, an ammeter and a switch connected in series. The switch is closed and the ammeter reading noted. The metal wire is now heated.

asked Jul 29, 2021 in Chemistry Form 2 by anonymous

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1 answer

State the uses of oxygen

asked Jul 28, 2021 in Chemistry Form 1 by davidkariukikinyanjui

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2 answers

Briefly explain the following observations.

asked Jul 28, 2021 in Chemistry Form 2 by anony mous

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1 answer

Rubidium (Rb) is a member of the alkali metals. Predict how the element reacts with:

asked Jul 28, 2021 in Chemistry Form 2 by anony mous

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