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Hi, can i get the marking scheme papers for biology?
You can check the marking schemes for Biology in the Papers section on the homepage. Is it Cambridge O Level Biology (5090)?
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Hi, can i get the marking scheme papers for biology?
ok
peop
Hi could just guide me through as how to attempt the physics theory paper in CIE examination?
because it is a lot difficult to figure out which question should I attempt first
for this you must know the definitions. See, oxidation can be discussed in three diffrent ways, like gain in oxidation state/ gain of oxygen, loss of electron and loss of hydrogen. Similarly reduction is loss of oxygen, gain of electron or gain of hydrogen.Please answer!!!
how do we figure out that in a redox reaction who losses and who gains electrons?
for example:
chlorine+ potassium bromide = Potassium chloride + bromide
who is reducing agent
who is oxidising agent
who reduces
who oxidises?
Yes i agree but how to solve such equations ? like the one i gave above. solve it as an example!for this you must know the definitions. See, oxidation can be discussed in three diffrent ways, like gain in oxidation state/ gain of oxygen, loss of electron and loss of hydrogen. Similarly reduction is loss of oxygen, gain of electron or gain of hydrogen.
A reducing agent is one which oxidises itself which means it gain electrons while it reduces the other hence reducing agent and an oxidising agent is one which reduces itslef while oxidising the other.
Please answer!!!
how do we figure out that in a redox reaction who losses and who gains electrons?
for example:
chlorine+ potassium bromide = Potassium chloride + bromide
who is reducing agent
who is oxidising agent
who reduces
who oxidises?
Okay, so if the equation doesnt involve oxygen, remember that it must involve electrons.Please answer!!!
how do we figure out that in a redox reaction who losses and who gains electrons?
for example:
chlorine+ potassium bromide = Potassium chloride + bromide
who is reducing agent
who is oxidising agent
who reduces
who oxidises?
Hey! I think the correct term for the "anion reactivity serires" is the " anion electrochemical series" You should try Googling that !Hey guys. Any one know where i can learn about anion reactivity series? I tried using Google but i couldn't find anything useful. Help me please?! Thanks a ton!
Sahana
a) by the animal eating.... animals eat it and when the seeds pass through the alimentary canal they are not digested and are egested out intact. The seeds will be discarded along with the feaces anywhere away from the mother plant.
No ProbThanks a lot i understood it at last! D
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