Chemistry Unit 4 Exam Discussion

[Cheeseball]

itute doesn't do chem

[phuiii]

Wait for Mao to put up solutions.
Godly solutions on the way if Mao does rofl

[/0]

I emailed my chem teacher (who is an assessor), he said fully charged means it's about to discharge.

Oh well, I don't fully agree, but what can you do about it?

[kendraaaaa]

I emailed my chem teacher (who is an assessor), he said fully charged means it's about to discharge.

Oh well, I don't fully agree, but what can you do about it?

They'll make both of them right solutions, the question was way to ambiguous and I was lucky that I interpreted as it being 'about to discharge'.

[TheJosh]

Hopefully /0 s answers for mc are right cause then i wouldve  got 20/20

[kendraaaaa]

where are the answers?

First or second page of this thread. They're not 'set' answers just suggested solutions, so don't take them as gospel.

[tomygun_123]

i reckon that the exam was surprisingly easy compared to mid year and last year. thought the questions were of good quality and would have tested people. I'm aiming for a A+, so hope i get it. these are my multichoice answers, let me know if you agree or disagree.
1A, 2D, 3C, 4A, 5C, 6D, 7A, 8D, 9B, 10D, 11D, 12D, 13D, 14A, 15A, 16D, 17A, 18B, 19D, 20D

Wow A+... i wish i could get one too, can you teach me how, faggot.

[sir0004]

For question 13, i also got D but everyone else said it was A?

[simpak]

13 I got A.  What question was that again?

[kendraaaaa]

13 I got A.  What question was that again?

A for me too.

[NE2000]

I emailed my chem teacher (who is an assessor), he said fully charged means it's about to discharge.

Oh well, I don't fully agree, but what can you do about it?

Is this his view or what the markers are marking?

I hope they give both.

[simpak]

13 I got A.  What question was that again?

A for me too.

I looked it up, it's the one about the pipes.
It can't be the reduction of oxygen and water to OH guys.
Look where region X is.
It's surrounded by the water droplet; no oxygen gets through, there are only water molecules.
So it has to be the anode, because if it were the cathode, reduction would occur and it would corrode.
Only iron can react because no O2 is present to react.
The answer is A.

[coonoo]

For question 12, was the answer C or D? Its the question about the arrangement of a cell recharging. C is a A connected to C (both positive)and B  connected to D (both negative). D is A to D and B to C.

[shonira]

For question 12, was the answer C or D? Its the question about the arrangement of a cell recharging. C is a A connected to C (both positive)and B  connected to D (both negative). D is A to D and B to C.

i think the answer was C (positive-positive and negative-negative)....thats what i found from my chem textbook.....i stuffed up that question cos i initially wrote C then changed it to D at the last minute cos i was doubting myself. GRRR :I

[simpak]

N...it's D.
The picture of the positive and negative one was the cell discharging, when the anode is negative and the cathode is positive.
Recharging is equivalent to electrolysis, therefore you have to switch them so that the anode is positive and the cathode is negative.
D.