Water And Hydrogen Questions and Answers

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5 answers

state two precaution that must be taken before the combustion begin and at the end of the combustion

asked Jan 5, 2023 in Chemistry Form 1 by 0717296XXX

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11 answers

what is reduction and oxidation

asked Nov 30, 2022 in Chemistry Form 1 by 0798465XXX

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2 answers

physical and chemical properties of hydrogen gas

asked Apr 11, 2022 in Chemistry Form 1 by Dybalajr

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3 answers

A piece of phosphorus was burnt in excess air and dissolved in hot water. Write an equation for the burning of phosphorus in excess air

asked Apr 11, 2022 in Chemistry Form 1 by lucynyaguthii

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1 answer

why is hydrogen able to reduce iron yet it is below iron in reactivity series

asked Mar 4, 2022 in Chemistry Form 1 by finivine

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5 answers

what is the test for hydrogen

asked Mar 1, 2022 in Chemistry Form 1 by BoazOkuta

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2 answers

What is the observation made during combustion?

asked Dec 23, 2021 in Chemistry Form 1 by GrahamHumphrey

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0 answers

this pain is passed over heated magnesium ribbon and hydrogen gas was collected as shown in the diagram below. (i) name the gas p (ii) write an equation of the reaction that takes place in the commbustion tube. (iii) state three precautions necessary at the end of the experiment.

asked Dec 19, 2021 in Chemistry Form 1 by AgnesMusungu

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1 answer

In an experiment dry hydrogen gas is passed over hot copper (ii) oxide in a combustion tube as shown in the diagram below.(b) describe how copper could be obtained from the mixture containing copper (ii) oxide

asked Dec 19, 2021 in Chemistry Form 1 by AgnesMusungu

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1 answer

when water reacts with potassium metal the hydrogen produced ignites explosively on the surface of water.(i) what causes ignition.(ii) write an equation to show how this ignition occurs

asked Dec 19, 2021 in Chemistry Form 1 by AgnesMusungu

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1 answer

Hydrogen can reduce coppers oxide but not aluminium oxide.Explain

asked Dec 19, 2021 in Chemistry Form 1 by AgnesMusungu

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1 answer

why pH solutions in a beaker goes down and solution becomes more acidic after one day in preparation of hydrogen gas

asked Nov 18, 2021 in Chemistry Form 1 by marymwango

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2 answers

Hydrogen chloride gas is bubbled through water and resultant solution divided to 3 portions. To the first portion three drops of silver nitrate solution. State what was observed and write the equation.

asked Nov 5, 2021 in Chemistry Form 1 by baliks

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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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1 answer

eguation of ammonium hydrogen carbonate

asked Aug 27, 2021 in Chemistry Form 1 by Nysher

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1 answer

The set up below was used to collect gas Z produced by the reaction between water and calcium metal. set up on water and calcium metal reaction Give a chemical test for gas Z. 2mks Write the equation of the reaction between the calcium metal and water.

asked Aug 18, 2021 in Chemistry Form 1 by anony mous

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1 answer

Hydrogen was passed over copper II oxide in a combustion tube.

asked Aug 18, 2021 in Chemistry Form 1 by anony mous

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1 answer

A mixture of Hydrogen gas and Carbon (IV) oxide are passed through Potassium hydroxide solution as shown below.

asked Aug 17, 2021 in Chemistry Form 1 by anonymous

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1 answer

Using dot (.) and cross (x) diagram show the type of bond present in hydrogen ion, H3O+ (H = 1, O = 8)

asked Aug 17, 2021 in Chemistry Form 1 by anonymous

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1 answer

The apparatus shown below was used to investigate the effect of Carbon (II) Oxide on Lead (II) Oxide.

asked Aug 17, 2021 in Chemistry Form 1 by anonymous

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