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i mean like only temporary not extra functionsno i only need it only for the exam only
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i mean like only temporary not extra functionsno i only need it only for the exam only
yeah alright whatever suits ui mean like only temporary not extra functions
heat energy is absorbed by the free electrons and they pass on the heat to each otherPhysics IGCSE QUESTION: DESCRIBE IN TERMS OF ITS ATOM (SPOON) HOW THERMAL ENERGY TRANSFERRED THROUGH A METAL?
need answer fast
View attachment 36935
I am pretty sure the question says LAMPS and as far as i know lamp has a symbol
yup ur rightI am pretty sure the question says LAMPS and as far as i know lamp has a symbol
No Carbonates of Ca do decompose, infact all the carbonates of metals from Ca to Cu in the reactivity series decompose to form the metal-oxide and CO2my chem book says dat in extraction of iron from its ore
CaCO3 == CaO + CO2 by decomposition
but carbonates of calcium donot decompose ??
I think x=2.http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Chemistry (0620)/0620_s05_qp_3.pdf
plz help !!!
q4 part d
cn get how would we fnd value of x
thnx in advance
What is the structure of hydrazine
Is there a double bond or single bond between nitrogen atoms
As time goes by, the harmful effects of the pesticides affect may parts of the body. When another organism feeds on it, it also gets it and it develops in its body ...Why does pesticide accumulate more in an organism as the trophic level increases? It should decrease, right? Because some will be lost in excretion,respiration and all...
they had asked it in a past paper i guess of 2004I don't think we have to know such minute details for our MayJune IGCSE...do we?
thanx alot thx chem is driving me crazyI think x=2.
The percentage of the water is it's mass.
So find the number of moles, using the formula, moles= mass/Mr
You will get 0.58 for cas04 and 1.16 for h2o
so the ratio is 1:2
so x=2
Hope this helps
the more the trophic level increases , the bio mass decreases n in other words it become more concentratedWhy does pesticide accumulate more in an organism as the trophic level increases? It should decrease, right? Because some will be lost in excretion,respiration and all...
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