Recent questions without a selected answer

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1 answer

State the law of conservation of energy.

asked Aug 18, 2021 in Physics Form 3 by anonymous

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1 answer

A car tyre is at pressure of 5.0x105 Pa at a temperature of 37℃. While it is running the temperature rises to 75℃. What is the new tyre pressure?(Assume the tyre does not expand)

asked Aug 18, 2021 in Physics Form 3 by anonymous

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2 answers

Draw the structure of a sulphur molecule.

asked Aug 18, 2021 in Chemistry Form 2 by anony mous

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1 answer

The figure below shows a set up used to verify pressure law.

asked Aug 18, 2021 in Physics Form 3 by anonymous

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1 answer

Define the term transition temperature concerning the allotropes of sulphur.

asked Aug 18, 2021 in Chemistry Form 2 by anony mous

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1 answer

Explain how a gas exerts pressure.

asked Aug 18, 2021 in Physics Form 3 by anonymous

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1 answer

The equation below shows the action of heat on three metal nitrates.

asked Aug 18, 2021 in Chemistry Form 2 by anony mous

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1 answer

State the pressure law;

asked Aug 18, 2021 in Physics Form 3 by anonymous

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1 answer

Chlorine water was exposed to sunlight for a few hours .Colourless gas F was collected in the boiling tube as shown.

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

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1 answer

The figure below shows a force distance graph for a car being towed on a level ground.

asked Aug 18, 2021 in Physics Form 3 by anonymous

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2 answers

Explain how you would show chemically that a given gas is ammonia.

asked Aug 18, 2021 in Chemistry Form 3 by anony mous

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1 answer

A ball is dropped from the top of a vertical cliff 45m high. Given that the velocity just before striking the sandy beach is 30m/s, and the ball penetrate the sand to a depth of 10cm determine its average retardation.

asked Aug 18, 2021 in Physics Form 3 by anonymous

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1 answer

A sample of air contaminated with carbon monoxide and sulphur dioxide was passed through the apparatus shown in the diagram below.

asked Aug 18, 2021 in Chemistry Form 2 by anony mous

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2 answers

Graphite is a non metal, yet it conduct an electric current .explain this observation.

asked Aug 18, 2021 in Chemistry by anony mous

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1 answer

Water of mass 3kg initially at 20℃ is heated in an electric kettle rated 3.0kW. Thewater is heated until it boils at 100℃. Taking specific heat capacity of water=4200Jkg/K, heat capacity of kettle=450J/kg, specific latent heat of vapourisation of water =2.3MJ/kg, calculate;

asked Aug 18, 2021 in Physics Form 3 by anonymous

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1 answer

The diagram below shoes the bonding between aluminium chloride and ammonia

asked Aug 18, 2021 in Chemistry Form 2 by anony mous

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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

Explain why it is advisable to use the pressure cooker for cooking at high altitudes.

asked Aug 18, 2021 in Physics Form 1 by anonymous

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1 answer

The figure 4 below shows an object of mass 0.2kg whirled in vertical circle of radius 0.5m at uniform speed of 5m/s.

asked Aug 18, 2021 in Physics Form 4 by anonymous

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1 answer

Distinguish between angular and linear velocity.

asked Aug 18, 2021 in Physics Form 3 by anonymous

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