22 May Hydrogen Peroxide
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...
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22 May Vinegar – An Overview
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....
12 May Secondary Chemistry Tuition Question and Answer
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...
12 May Organic Molecular Structures – Questions and Answers
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...
12 May Basic questions of chemistry
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...
12 May Methane -The Main Constituent of Natural Gas
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. ...
09 May Boron Nitride – An Overview
(a) Suggest why boron nitride with structure A can be used as a lubricant. ...
09 May Are you able to answer this Secondary Chemistry Tuition Question? (Part 2)
Several small pieces of magnesium are placed on a block of solid carbon dioxide. The solid carbon dioxide is at a temperature of -60 °C. The...
07 May Suggest Why Calcium Oxide Is Used To Neutralize Acidic Soils
9. Cement is made by heating clay with crushed calcium carbonate. During this process, the calcium carbonate is first converted to calcium oxide. (a) Suggest why calcium...
05 May Silicate – An Overview
2 . Sorrel is a small green plant. (a) The pigments in the sorrel leaf can be separated by chromatography. (i) Describe how chromatography can...
05 May O Level Chemistry Tuition Question
Although certain bacteria in the soil convert nitrogen gas into nitrates, other bacteria convert nitrogen into ammonium salts. The ionic equation for this second reaction is N2...
05 May IP Chemistry Tuition – Question and Answer
Although certain bacteria in the soil convert nitrogen gas into nitrates, other bacteria convert nitrogen into ammonium salts. The ionic equation for this second reaction is N2...
05 May Periodic Table Questions (Practice)
5 In the Periodic Table, how many periods include the elements of atomic numbers 1-18? A ...
05 May The Periodic Table of Elements
9. Which graph shows the number of electrons in the outer shell of an atom, plotted against the proton (atomic) number for the first ten elements...
05 May Chemistry Tuition Question On Mole
13 Which quantity is the same for one mole of ethanol and one mole of ethane? A. mass B....
05 May IP Chemistry Tuition Question
We are back with a very interesting story in your chemistry tuition. Every one of you must have seen candles burning. Ever wondered where the wax...
05 May Are you able to answer this Secondary Chemistry Tuition Question? (Part 4)
We are back with a very interesting story in your chemistry tuition. Every one of you must have seen candles burning. Ever wondered where the wax...
05 May Aluminum Properties – Question and Answer
We are back with a very interesting story in your chemistry tuition. Every one of you must have seen candles burning. Ever wondered where the wax...
05 May Are you able to answer this Secondary Chemistry Tuition Question?(Part 6)
We are back with a very interesting story in your chemistry tuition. Every one of you must have seen candles burning. Ever wondered where the wax...
05 May Chemistry Multiple Choice Questions (MCQ)
We are back with a very interesting story in your chemistry tuition. Every one of you must have seen candles burning. Ever wondered where the wax...
05 May Are you able to answer this Secondary Chemistry Tuition Question?
We are back with a very interesting story in your chemistry tuition. Every one of you must have seen candles burning. Ever wondered where the wax...
03 Feb Where does wax go when a candle burns?
We are back with a very interesting story in your chemistry tuition. Every one of you must have seen candles burning. Ever wondered where the wax...
03 Feb What is Heavy Water?
We are back with another exciting story for your chemistry tuition. Your chemistry tuition can come up with interesting facts about chemistry. Everyone of you knows...
03 Feb Why do some acids cause burn?
You have all know about acids through your chemistry tuition classes. You are always told to be careful while handling acid in your chemistry tuition classes....
03 Feb What is a Litmus Paper?
In chemistry tuition class, we will discuss about a way of finding out acidic and basic solutions. In laboratories, chemists and researchers use litmus paper to...
03 Feb Strong Acid and Weak Acid
Chemistry tuition classes in Miracle Learning Centre is fun and easy to understand. If you never liked chemistry, you must definitely try the chemistry tuition class...
03 Feb Reactivity of Metals
Chemistry tuition classes in Miracle Learning Centre is very useful. If you do not understand chemistry, you must definitely attend the chemistry tuition class at Miracle...
03 Feb Distillation and Fractional Distillation
Chemistry tuition classes in Miracle Learning Centre is very useful. If you do not understand chemistry, you must definitely attend the chemistry tuition class at Miracle...
03 Feb Bases and Alkali
Chemistry tuition classes in Miracle Learning Centre is very useful. If you do not understand chemistry, you must definitely attend the chemistry tuition class at Miracle...
03 Feb Reactions of Alkali
Chemistry tuition classes in Miracle Learning Centre is very useful. If you do not understand chemistry, you must definitely attend the chemistry tuition class at Miracle...
03 Feb Air Pollution (Part 2)
Chemistry tuition classes in Miracle Learning Centre is very useful. If you do not understand chemistry, you must definitely attend the chemistry tuition class at Miracle...
03 Feb Acid Reacts with a metal carbonate
Chemistry tuition classes in Miracle Learning Centre is very beneficial. If you do not understand chemistry, you must definitely try the chemistry tuition class at Miracle...
01 Feb How Wine Is Made
Chemistry tuition classes in Miracle Learning Centre are easy to understand and help you to improve in your grades. If you do not understand Chemistry, you...
01 Feb Physical and Chemical Reactions
Chemistry tuition classes in Miracle Learning Centre are easy to understand and help you in the chemistry tuition application questions. If you do not understand chemistry...
01 Feb Chemistry Tuition – Oxidation
Chemistry tuition classes in Miracle Learning Centre are easy to understand and help you in the chemistry tuition application questions. If you do not understand chemistry...
01 Feb Organic chemistry including alcohol, acid and esters
Chemistry tuition classes in Miracle Learning Centre are easy to understand and help you in the chemistry tuition application questions. If you do not understand chemistry...
01 Feb Introduction to electrolysis
Chemistry tuition classes in Miracle Learning Centre is easy to understand and help you in the chemistry tuition application questions. If you do not understand chemistry...
01 Feb Group I Elements In The Periodic Table
Chemistry tuition classes in Miracle Learning Centre is easy to understand and help you in the chemistry tuition application questions. If you do not understand chemistry...
01 Feb Exothermic Reactions
Chemistry tuition classes in Miracle Learning Centre is easy to understand and help you in the chemistry tuition application questions. If you do not understand chemistry...
01 Feb Chemistry Tuition | Oxides
Chemistry tuition classes in Miracle Learning Centre are easy to understand and help you in the chemistry tuition application questions. If you do not understand chemistry...
01 Feb Chemistry tuition | Reduction
Chemistry tuition classes in Miracle Learning Centre are easy to understand and help you in the chemistry tuition application questions. If you do not understand chemistry...
01 Feb Reducing Agents and Oxidising Agents
Chemistry tuition classes in Miracle Learning Centre is easy to understand and help you in the chemistry tuition application questions. If you do not understand chemistry...
01 Feb Preparation of Soluble Salt Like Sodium Chloride
Chemistry tuition classes in Miracle Learning Centre are easy to understand and help you in the chemistry tuition application questions. If you do not understand chemistry...
01 Feb Preparation of Insoluble Salt and The Solubility Table
Chemistry tuition classes in Miracle Learning Centre are easy to understand and help you in the chemistry tuition application questions. If you do not understand chemistry...
01 Feb Introduction To The Periodic Table
Chemistry tuition classes in Miracle Learning Centre are easy to understand and help you in the chemistry tuition application questions. If you do not understand chemistry...
01 Feb Electrolysis Using Inert and Reactive Electrodes
Chemistry tuition classes in Miracle Learning Centre is easy to understand and help you in the chemistry tuition application questions. If you do not understand chemistry...
01 Feb Displacement Reaction In The Periodic Table
Chemistry tuition classes in Miracle Learning Centre is easy to understand and help you in the chemistry tuition application questions. If you do not understand chemistry...
01 Feb Reactions of Acid
Chemistry tuition classes in Miracle Learning Centre are easy to understand and help you in the chemistry tuition application questions. If you do not understand chemistry...
31 Jan Introduction to Organic Chemistry
Chemistry tuition classes in Miracle Learning Centre is easy to understand and help you in the chemistry tuition application questions. If you do not understand chemistry...
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