http://olevelspreparation.blogspot.com/2012/05/all-colors-of-elements-in-chemistry.htmlcan someone plz give a link or something for coloured compounds in chemistry
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http://olevelspreparation.blogspot.com/2012/05/all-colors-of-elements-in-chemistry.htmlcan someone plz give a link or something for coloured compounds in chemistry
You tie the piece of cloth to the mouth of the beaker, securing it with the threads. Measure the temperature at regular intervals. Then, take another such cloth and dampen it using water from the tap. At the same intervals as in the previous experiment, take the thermometer reading. Compare the two experiments and rate of heat loss. The beaker with the damp cloth will have a faster heat loss, as the moisture in it absorbs heat from the water and loses it to the surrounding as latent heat of evaporation, same as sweating does
Thankyou and can u also explain me the topic surface area to volume ratio pleasee
look closely at the question it says (0.5 Io) and Io=o.3Why did you multiply it by 0.3 and 0.5 together? ??
The more the readings/repetitions, the more accurate the experiment!http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_w11_qp_41.pdf question1 part b , subpart 1, I wrote, more margin of error. and the mark scheme says http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_w11_ms_41.pdf....should I have any hope on such deviations?/
will i get marks for what i wrote?The more the readings/repetitions, the more accurate the experiment!
It's one mark. I don't think you'll get it.will i get marks for what i wrote?
did u get the answer? cux i m stuck at the same question :/BIOLOGY Can someone help me please
There is a question in OCT/NOV 2005 Paper 6
Suggest how you would observe the yeast cells and how you would estimate their total population in the flask?
i looked it up in the marking scheme but still i don't understand the answer :'(
When water leaves out of a plant cell, it is called exosmosis (tip to remember:exit from ex) when the plant cells are kept in a region of low water potential the water in them leaves by osmosis called exosmosis. The cell becomes flaccid. We say that it has plasmolysed.any body tell me when exosmosis occurs in plant..???
1 dm3 contain 7g of organic acid. If u know this then you will simpy calculate by the Mole formulae.There is question in 5070/41/ON12, Q9 The student titrates R, an aqueous solution containing 7g/dm3 of organic acid with S an aqueous solution containing 0.100mol/dm3 of NaOH. Part E says calculate number of moles of acid in 1.00 dm3 or R. Plz tell me how to solve it. Its urgent plz
http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_w11_qp_41.pdf question1 part b , subpart 1, I wrote, more margin of error. and the mark scheme says http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_w11_ms_41.pdf....should I have any hope on such deviations?/
http://papers.xtremepapers.com/CIE/Cambridge International O Level/Chemistry (5070)/5070_s09_qp_4.pdf
Someone please tell me the answer for question 2 part b-ii) with explanation.
which mole formula? i do it with ratio's, can you tell me the formula?1 dm3 contain 7g of organic acid. If u know this then you will simpy calculate by the Mole formulae.
Guys How to obtain Bigger or better crystals when preparing salts?
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