Question

Couple of questions! Please help!

Answer 1

yeah

Answer 2

I think it would be powering a light bulb. This is because you are putting power into this cell. You would get energy out to power a lightbulb if it were a galvanic cell, but this is an electrolytic cell.

Answer 3

Electroplating is a process that uses electric current to reduce dissolved metal cations so that they form a coherent metal coating on an electrode. The term is also used for electrical oxidation of anions onto a solid substrate, as in the formation silver chloride on silver wire to make silver/silver-chloride electrodes. Electroplating is primarily used to change the surface properties of an object (e.g. abrasion and wear resistance, corrosion protection, lubricity, aesthetic qualities, etc.), but may also be used to build up thickness on undersized parts or to form objects by electroforming.

Answer 4

so I think it would be purifying a metal ore.

Answer 5

but you can purify a metal ore in a electrolytic cell

Answer 6

im almost certain

Answer 7

you are not completely certain though

Answer 8

lol

Answer 9

did you read the question? Which of the following kinds of work would not be appropriate for this type of cell? that is the question. Powering a light bulb would happen inside of a galvanic cell. THIS IS AN ELECTROLYTIC CELL DUE TO THE EXTERNAL POWER SOURCE.

Answer 10

Someone is upset today

Answer 11

dont give wrong answer tho bruh

Answer 12

bye :)

Answer 13

Hope you get the answer correct :)

Answer 14

is their a picture for this question

Answer 15

I am not that knowledgeable in dry cells, but I will try to find some info to determine where the anode is in the battery.

Answer 16

Apparently the solid Zinc layer is the anode and it is known that Oxidization always occurs at the anode so this is where the oxidization takes place. This a picture i found depicting a cell. http://mfg.regionaldirectory.us/dry-cell-battery-600.jpg It makes sense as Zinc being a metal would most likely lose electrons in Oxidization.

Answer 17

Well it would be the solid Zinc Layer which is the anode which in turn is where oxidization takes place :). SO Yes the Answer would be C.

Answer 18

In which of the following combinations would you need an electroplating apparatus to coat the first metal onto the second metal?



aluminum onto lead (Pb)

cadmium onto nickel

nickel onto iron

tin (Sn) onto copper

Answer 19

do u still have that activity series list from earlier?

Answer 20

In this case the answer would be Nickel onto Iron which can be seen because Iron is higher on the activity series than Nickel is so it would require an electroplating apparatus. So C.

Answer 21

Of the metals Fe, H, K, and Mg, which spontaneously donate electrons to sodium (Na)?



Fe

H

K

Mg

Answer 22

same chart!

Answer 23

K would

Answer 24

none of the others would

Answer 25

Which of the following statements is true about a nickel-cadmium dry cell?

The cathode reaction is Cd + 2OH Cd(OH)2 + 2e.

The cathode reaction is Cd + NiO2 + 2H2O Cd(OH)2 + Ni(OH)2.

The cathode reaction is NiO2+ H2O + 2e Ni(OH)2 + 2OH.

The anode reaction is NiO2 + H2O + 2e Ni(OH)2 + 2OH.

Answer 26

I think its either C or D

Answer 27

Just don't know if its an anode reaction or Cathode reaction..

Answer 28

anode reaction would be a reaction where electrons are lost so Ni would have a less negative charge. If its a cathode reaction Ni would have a more negative charge and would have gained electrons. Ni in these reactions goes from Ni2+ ---> Ni 4+ sooo the charge on Ni became less negative which would mean that this would an oxidization half reaction which would occur at the anode.

Answer 29

So yea the answer is D.

Answer 30

Oh good!

Answer 31

For which of the following processes would the pictured cell be used?


coating a material with metal

producing electricity

purifying a metal

splitting a compound into its elements

Answer 32

A. electroplating also known as coating a material with metal

Answer 33

In the diagram, if electrons flow from the right half-cell to the left one through the wire, which of the following statements is true?


The metal strip on the left has a lower activity than the one on the right.

The metal strip on the right has a lower activity than the one on the left.

The activities of both metal strips are equal.

Answer 34

The metal strip on the left has a lower activity than the one on the right. Also you can see in the picture that the metal strip on the left is Gold(Au) which has the lowest activity.

Answer 35

Which part shown in the diagram is positively charged?


solid Zn

wire

salt bridge

solid Cu

Answer 36

I only have one more question after this one!

Answer 37

@sweetburger