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22 May

Miracle Learning Centre (O Level Chemistry Tuition/ IP Chemistry Tuition) Are you able to answer this Secondary Chemistry Tuition Question?

7) Aqueous hydrogen peroxide is used to sterilise contact lenses. At room temperature, aqueous hydrogen peroxide decomposes very slowly to form water and oxygen. The decomposition can be represented by the equation below: 2 H – O – O – H O = O + 2 H...

06:11 / Chemistry Tuition Q / admin

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22 May

Miracle Learning Centre (O Level Chemistry Tuition/ IP Chemistry Tuition) Are you able to answer this Secondary Chemistry Tuition Question?

a) (i) Give evidence from the diagram which demonstrates that the above reaction is exothermic. ……………………………………………………………………………………………… (ii) Construct the balanced chemical equation for the above reaction....

05:15 / Chemistry Tuition Q / admin

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12 May

Miracle Learning Centre (O Level Chemistry Tuition/ IP Chemistry Tuition) Are you able to answer this Secondary Chemistry Tuition Question?

Terephthoyl chloride and ethylene glycol react by polymerisation to produce a polymer called poly(ethylene terephthalate), commonly known as PET. PET is used to make soft drink bottles. Fumes of an acidic gas are also produced. (i) Suggest whether PET is formed by addition or condensation...

08:22 / Chemistry Tuition Q / admin

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12 May

Miracle Learning Centre (O Level Chemistry Tuition/ IP Chemistry Tuition) Are you able to answer this Secondary Chemistry Tuition Question?

08:06 / Chemistry Tuition Q / admin

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12 May

Miracle Learning Centre (O Level Chemistry Tuition/ IP Chemistry Tuition) Are you able to answer this Secondary Chemistry Tuition Question?

Methane, CH4, is the major constituent of natural gas. (a) Draw a dot-and cross-diagram to show how the outer shell electrons are arranged in methane. (b) At a temperature of –5 °C and a pressure of 26 atmospheres, methane combines with water and forms an ice-like structure...

07:30 / Chemistry Tuition Q / admin

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12 May

Miracle Learning Centre (O Level Chemistry Tuition/ IP Chemistry Tuition) Are you able to answer this Secondary Chemistry Tuition Question?

3 . Methane, CH4, is the major constituent of natural gas. (a) Draw a dot-and cross-diagram to show how the outer shell electrons are arranged in methane. ...

07:26 / Chemistry Tuition Q / admin

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Miracle Learning Centre (O Level Chemistry Tuition/ IP Chemistry Tuition) Are you able to answer this Secondary Chemistry Tuition Question?

Miracle Learning Centre (O Level Chemistry Tuition/ IP Chemistry Tuition) Are you able to answer this Secondary Chemistry Tuition Question?

Miracle Learning Centre (O Level Chemistry Tuition/ IP Chemistry Tuition) Are you able to answer this Secondary Chemistry Tuition Question?

Miracle Learning Centre (O Level Chemistry Tuition/ IP Chemistry Tuition) Are you able to answer this Secondary Chemistry Tuition Question?

Miracle Learning Centre (O Level Chemistry Tuition/ IP Chemistry Tuition) Are you able to answer this Secondary Chemistry Tuition Question?

Miracle Learning Centre (O Level Chemistry Tuition/ IP Chemistry Tuition) Are you able to answer this Secondary Chemistry Tuition Question?

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