Answer:
The answer to your question is: 3000 cm
Explanation:
30 meters long to cm
We can use a rule of three to solve it
We know that 1 meter ------------------ 100 cm
30 meters ---------------- x
x = 30(100)/1 = 3000 cm
glass copper water
absorbing a given of amount of heat
Answer:
679.32 kJ
Explanation:
Heat required = number of moles * latent heat of fusion of water
So since we are given the mass of water and not the number of moles our first step is to calculate the number of moles of water available,
heat required = 111.0 mol * 6.12 kJ/mol
= 679.32 kJ
<u>Answer:</u>
<u>For (i):</u> Magnesium is getting oxidized and zinc is getting reduced.
<u>For (ii):</u> The half reactions are given below.
<u>For (iii):</u> Magnesium will act as anode and zinc act as cathode.
<u>Explanation:</u>
The substance having highest positive potential will always get reduced and will undergo reduction reaction. Here, zinc will always undergo reduction reaction will get reduced.
Magnesium will undergo oxidation reaction and will get oxidized.
Oxidation reaction is defined as the reaction in which an atom looses its electrons. The oxidation number of the atom gets increased during this reaction.
Reduction reaction is defined as the reaction in which an atom gains electrons. The oxidation number of the atom gets reduced during this reaction.
Oxidation half reaction:
Reduction half reaction:
Oxidation reaction always occurs on anode side and thus, magnesium is acting as anode.
Reduction reaction always occurs on cathode side and thus, zinc is acting as cathode.
Because if you have a liquid then you need a glass to keep it together and when it is a solid it is already together so you don't need to do anything