3. (a) Aluminium can be extracted by electrolysis using the apparatus shown power supply anodes - wires cathode aluminium oxide and cryolite molten aluminium (i) Give two reasons why cryolite is used. 1 (2)

Q: - NO3-(aq) → H3ASO

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Q: 96 Report Sheet • Activity Series 6. Complete and balance the following: the lowest energy level for…

A: Please find below the complete reaction Mg(s) + O2 (g) ---> MgO (s)…

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A: Amount of Cu deposited at the cathode when constant current is passed through a solution containing…

Q: 1. Hydrazine, N2H4, has been proposed as the feul in a feul cell in which oxygen is the oxidizing…

A:

Q: Write a balanced half-reaction for the reduction of nitrate ion NO−3 to gaseous nitric oxide

A: NO3- -----> NO (Oxidation number of N decreased from +5 to +2 (by 3 units)

Q: Write and balance the equation for the following descriptions: 50) Potassium reacts with water…

A:

Q: Reduction of 4.00 g of metal oxide with oxidation number +2 to metal produces 1.80 g of water.…

A: The reaction can be given as follows: MO+2H2→MH2+H2O The mass of metal oxide (MO) is 4.00 g The mass…

Q: What is the oxidation number of S in the compound Na,S,O5?

A:

Q: [1] Balance the following redox reaction in acidic solution. CrO (aq) + HSNO2¯(aq) → CrO2 (aq) +…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

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A: Detail description and calculation is given below

Q: What is the net ionic equation for the reaction of AgNO3(aq) with K2SO4(aq). Include phases.

A: The net ionic equation shows only the chemical species that are involved in a reaction, while the…

Q: Determine the oxidation state of oxygen in Al2O3 : Include the sign (+ or -) as needed.

A: Explanation to the correct answer is given below

Q: magnesium + cobalt (II) nitrate;Balanced chemical equation'Reaction type:

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Q: Consider the series of reactions to synthesize the alum (KAl(SO4 )2 · xH2O(s)) from the…

A: To calculate the moles of alum formed from the given number of moles of each reagent, we would use…

Q: Illustrate the amphoteric nature of aluminum hydroxide by citing suitable equations.

A: The property of any compound behaving as an acid when reacted with base and behaving as a base when…

Q: How many grams of nitric acid are required to react with 2.75 g of copper?

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