edexcel as chemistry and biology 23 nd 24th 2019 Watch

Zebin mehrin
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guyzz just started a new thread for chem and bio so we cn post our doubts predictions and discussions here.....
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perils
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Hey, I've been looking for one. hope this one gets active
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username4667968
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yes i need for both chemistry and biology new syllabus as
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Zebin mehrin
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guyzz what is the difference between nucleoid and plasmid by function?
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AsithU
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(Original post by Alisia123456)
guyzz what is the difference between nucleoid and plasmid by function?
I don't think you need to know this in detail. A nucleoid contains the basic genetic makeup of the organism and plasmids contain additional genetic information probably
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Ailurophile03
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im so doomed
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AsithU
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(Original post by Ailurophile03)
im so doomed
accurate
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Haider.alix
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Atleast you will do As and A level in separate years(Grade 12 nd 13) we r doing as and a level in the same year (Grade 12)
(Original post by Ailurophile03)
im so doomed
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username4667968
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(Original post by Haider.alix)
Atleast you will do As and A level in separate years(Grade 12 nd 13) we r doing as and a level in the same year (Grade 12)
omg why and how?
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Haider.alix
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(Original post by dsn_o_u_r_e_e_n)
omg why and how?
I dont know why but we are suffering i swear, hell ....... we fought with our teachers that why is it in one year ...... my teachers like" from past 15 years we are doing it no one had a problem then why do u have a problem"
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username4667968
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(Original post by Haider.alix)
I dont know why but we are suffering i swear, hell ....... we fought with our teachers that why is it in one year ...... my teachers like" from past 15 years we are doing it no one had a problem then why do u have a problem"
omg that's crap everyone have their a level atleast 2 years but 2 years is a must. one year is more like a suicide..too much pressure all at once why bruh?
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username4667968
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no 4 why and how?
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Haider.alix
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Life.
(Original post by dsn_o_u_r_e_e_n)
omg that's crap everyone have their a level atleast 2 years but 2 years is a must. one year is more like a suicide..too much pressure all at once why bruh?
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Bloomy_blue
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(Original post by dsn_o_u_r_e_e_n)
no 4 why and how?
is the answer c?
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username4667968
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how to calculate the mass in here? why do we do tht?
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username4667968
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(Original post by Bloomy_blue)
is the answer c?
yes but why? make me understand?
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Bloomy_blue
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(Original post by dsn_o_u_r_e_e_n)
yes but why? make me understand?
convert the concentration to mol/dm3 and then using the volume given(1 dm3) calculate the mol.
equation concentration=mol/volume
then from mole and Mr of glucose (c6h12o6) calculate mass
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username4667968
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(Original post by Bloomy_blue)
convert the concentration to mol/dm3 and then using the volume given(1 dm3) calculate the mol.
equation concentration=mol/volume
then from mole and Mr of glucose (c6h12o6) calculate mass
thank you got it r8 can u show me the other one too. how to do it?
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Bloomy_blue
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(Original post by dsn_o_u_r_e_e_n)
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how to calculate the mass in here? why do we do tht?
calculate mole using volume and concentration of copper 2sulfate then using eqn
∆h =(30×4.2×47.6)/mole is the answer
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username4667968
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(Original post by Bloomy_blue)
calculate mole using volume and concentration of copper 2sulfate then using eqn
∆h =(30×4.2×47.6)/mole is the answer
why do we divide by moles and do we always take the mass of solution in delta h calculation apart from neutralization questions?
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