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Because percentage means divide by 100.I do understand why we have to divide , but why chose to divide by 100 is my doubt.
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Because percentage means divide by 100.I do understand why we have to divide , but why chose to divide by 100 is my doubt.
lolwhy so lonely here! start asking doubts
Read out the tips given on the following page:Hi, I'm taking AS & A Level Chemistry in Oct/Nov. I'm self teaching as a private candidate. So far, so good except for the practical thing.
Can somebody give me a guideline on the "usual" ezperiments? Like a list of experiments/procedures I should be familiar with. I've been watching videos about titration and identifying ions. Any help would be very much appreciated
Copper contains only metallic bonding between the cations.Which solid contains more than one type of bonding??
A. Copper
B. Diamond
C. Ice
D. Magnesium oxide
Were we asked to identify the element?View attachment 60900
Toughest Question in AS Chemistry M/J 16 QP22
I analysed based on my understand, they should be 3 possible answers....
Na/Mg/Cl.
IE of … | log 10
fith |6542 |3.82E+00
sixth| 9362 |3.97E+00
seveth| 11018 |4.04E+00
eighth| 33606 |4.53E+00
View attachment 60900
Toughest Question in AS Chemistry M/J 16 QP22
I analysed based on my understand, they should be 3 possible answers....
Na/Mg/Cl.
IE of … | log 10
fith |6542 |3.82E+00
sixth| 9362 |3.97E+00
seveth| 11018 |4.04E+00
eighth| 33606 |4.53E+00
That's not the toughest!View attachment 60900
Toughest Question in AS Chemistry M/J 16 QP22
I analysed based on my understand, they should be 3 possible answers....
Na/Mg/Cl.
IE of … | log 10
fith |6542 |3.82E+00
sixth| 9362 |3.97E+00
seveth| 11018 |4.04E+00
eighth| 33606 |4.53E+00
Exactly.They just asked us to identify group number, which is clearly 7 because of huge difference between 7th and 8th Ionisation energy.
Exactly. Only group No.Exactly.
how many electrons does C have in CH3+ ?In which species does the underlined atom have an incomplete outer shell?
A - Al2Cl6 (Al underlined)
B - CH3+ (C underlined)
C - Cl2O (O underlined)
D - H2ClC (Cl underlined)
M/J/12(12) Q.4
Answer is B, how?
In which species does the underlined atom have an incomplete outer shell?
A - Al2Cl6 (Al underlined)
B - CH3+ (C underlined)
C - Cl2O (O underlined)
D - H2ClC (Cl underlined)
M/J/12(12) Q.4
Answer is B, how?
Hi everyone, AsSalamoAlaikum Wr Wb..
To get things organized in a better way, I am making this thread. As othewise, some queries remain unanswered!
So post your CHEMISTRY doubts in this thread. InshaAllah members around will help you.
Any Chemistry related notes and links will be added here in this post. Feel free to provide the links to your notes around the forum, or any other websites!
Chemistry Notes:
http://www.chemguide.co.uk This is the website, which contains almost everything classified according to the syllabus.
Tips for solving chemistry MCQs 9701/01
Chemistry P5 Tips and Notes
Some links & Notes - by 'destined007'
Chemistry worksheets Link shared by hassam
Chemistry Application Booklet: Mistakes and Corrections!
Calculations for A level Chemistry, author E.N. Ramsden third edition ebook download.
Regards,
XPC Staff.
Check the first link in BLUE below this post in my signature. Check there in chemistry module. ^_^ And do like and vote if u think that notes helped uCan you provide me notes for A2 organic chemistry new syllabus notes? any mind map for organic reactions?
It depends on what B's and C's u get, if both are higher then u get A if lower then BCan anybody help me, if one has these components in Chem 9701 P1 B P2 A P3 B P4 A P5 C, what grade should he expect B or A?
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