PLEASE ANSWER ALL QUESTIONS- I NEED HELP NOW a)Copper oxide reacts with carbon to from copper and carbon dioxide. State what has been reduced giving a reason for your answer?

b) Zinc reacts with lead oxide, PbO, to from lead and zinc oxide, ZnO. What was the word equation for this reaction?

c)b) Zinc reacts with lead oxide, PbO, to from lead and zinc oxide, ZnO. State what has been oxidised in this reaction & give reason why?

d)b) Zinc reacts with lead oxide, PbO, to from lead and zinc oxide, ZnO. State what has been reduced in this reaction & give reason why?

e)b) Zinc reacts with lead oxide, PbO, to from lead and zinc oxide, ZnO. Write the balanced word equation?

f)Suggest how we could use electrolysis to extract titanium from it's ore?

PLEASE HURRY UP, I NEED ANSWERS NO2

answer: - 3.) the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.

solution: - as per the rules, oxidation number of oxygen in its compounds is -2. the sum of oxidation numbers of all the elements of a molecule or compound is zero.

also, the oxidation number in elemental form is zero.

in no, the oxidation number of o is -2 so the oxidation number of n is +2 so that the sum is zero.

similarly, the oxidation number of c in co is +2 and o is -2.

on product side the oxidation number of n is 0 as it is in the elemental form() .

oxidation number of c in carbon dioxide is +4 as there are two oxygen in it and we know that each oxygen is -2.

so, oxidation number of n is changing from +2 to 0 and the oxidation number of c is changing from +2 to +4.

since nitrogen is reduced and hence no is acting as an oxidizing agent. carbon is oxidized and so co is acting as a reducing agent.

so, the right choice is number 3.)the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter  

hypostyle hall;