Filtration is used to separate large particles but this process does not provide pure solutions as some impurities still remain in the solution. On the other hand, distillation helps in the formation of pure water as it removes the impurities from the water or solution.
Answer:
PH scale is a universal indicator of strongness of base and acid
Quartz<span> is the second most abundant </span>mineral<span> on </span>Earth<span>'s </span>continental crust, it can be colourless to black and has the lowest weathering potential in the Goldich dissolution series and therefore it is commonly found as a residual mineral in river sediments and residual soil.
Molar mass of ethanol is: 46 grams/moles
C2H6O-> 2x12 + 6x1+ 16x1 (see periodic table)
If 46 g correspond to 1 mol, how much moles correspond 35 g?
46g ====1mol
35g====x
x= 35/46
x=0,76 mol
-1367 kj/mol, means that there are -1367 kj in one mol
1mol ==== -1367 kj
0,76mol==== x
x=- 1040Kj
Ethanol released 1040 Kj.