Recent questions without an upvoted answer

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A student in form three was given two gases C2H6 and C2H4. He added acidified Potassium Manganate (VII) to each solution. State the observations the student made.

asked Aug 17, 2021 in Chemistry Form 3 by anonymous

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State the function of each of the following in the solvay process of production of Sodium Carbonate.

asked Aug 17, 2021 in Chemistry Form 2 by anonymous

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Electrode potentials for the half cells are shown below. Use the information to answer the questions that follow.

asked Aug 17, 2021 in Chemistry Form 4 by anonymous

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The diagram below is used to prepare nitrogen (IV) oxide gas.

asked Aug 17, 2021 in Chemistry Form 3 by anonymous

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Given that the hydration energies of Ca2+(g) and Cl-(g) are -1562KJ/Mole and -364KJ/Mole respectively. The heat of solution (Hsoln) for one Mole of CaCl2 is -82.9 KJ/Mole. Determine the lattice energy for CaCl2.

asked Aug 17, 2021 in Chemistry Form 3 by anonymous

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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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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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An ion T2- has an electronic arrangement of 2.8

asked Aug 17, 2021 in Chemistry Form 2 by anonymous

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10cm3 of a gaseous hydrocarbon, CxHy required 30cm3 of oxygen for complete combustion. If steam and 20cm3 of Carbon (IV) oxide were produced, what is the value of x in CxHy.

asked Aug 17, 2021 in Chemistry Form 3 by anonymous

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2 answers

State Gay-Lussac’s law

asked Aug 17, 2021 in Chemistry Form 3 by anonymous

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The set-up below was used to prepare a solution of hydrogen chloride gas

asked Aug 17, 2021 in Chemistry Form 2 by anonymous

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In terms of structure and bonding explain the following

asked Aug 17, 2021 in Chemistry Form 2 by anonymous

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State three factors that increase the rate of reaction for the following reaction.

asked Aug 17, 2021 in Chemistry Form 3 by anonymous

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The empirical formula of a hydrocarbon is C2H3. The hydrocarbon has a relative molecular Mass of 54. (H = 1, C = 12)

asked Aug 17, 2021 in Chemistry Form 3 by anonymous

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The diagram below represents paper chromatogram of four types of sugar.

asked Aug 17, 2021 in Chemistry Form 1 by anonymous

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Below is a cross- section of a charcoal burner

asked Aug 17, 2021 in Chemistry Form 2 by anonymous

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An element F has a relative atomic mass of 88. When a current of 0.5 amperes was persed through the fused chloride of F for 20 minutes and 20 seconds, 0.278g of F were deposited at the cathode. Determine the charge on ion of F (1Faraday = 9650ºC).

asked Aug 17, 2021 in Chemistry Form 4 by anonymous

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What is a binary electrolyte.

asked Aug 17, 2021 in Chemistry Form 4 by anonymous

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Explain why concentrated Sulphuric (VI) acid is a poor electrolyte and has no effect on blue litmus paper whereas 2M Sulphuric (VI) acid conducts electricity and changes blue litmus paper red.

asked Aug 17, 2021 in Chemistry Form 4 by anonymous

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The solubility of Potassium Manganate (VII) at 20ºC is 13g per 100g of water and at 90ºC is 60g per 100g of water.

asked Aug 17, 2021 in Chemistry Form 1 by anonymous

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