Hexane is alkane and hexene is alkene.
They can be distinguish by bromine test.
Hexane being a saturated hydrocarbon does not decolourizes Br2 in CCl4 and hexene being unsaturated decolourizes Br2 in CCl4.
Reaction : CH3CH2CH2CH2CH2=CH2 + Br2 in CCl4 ------> CH3CH2CH2CH2CH2(Br)CH2Br ( colourless)
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Group 18 are stable because thier outermost shell ocuppied with full of electrons and its chemically inert
Hello!
We have the following data:
MM (Molar mass of Na2CO3)
Na = 2*23 = 46 u
C = 1*12 = 12 u
O = 3*16 = 48 u
----------------------
MM (Molar mass of Na2CO3) = 46+12+48 = 106 g/mol
n (mol number) = 1 mol
m1 (mass of the solute) = ?




So if we have the dissolution in a liter (m2 - mass of solvent), that is 1000g , then the total mass of the solution (m) will be:



<span>Now, let's find the percentage in mass (% m / m), let's see:
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Answer:
B) 9.6I Hope this helps, greetings ... DexteR!