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Assuming the hydrocarbon is saturated the formula would be C21H44 In a saturated hydrocarbon the number of hydrogen atoms is equal to twice the number of carbon atoms, plus two.
Oversaturated, only around 35g of sodium chloride will dissolve at that 20C.
20c is hotter.
$20, $10, $2, $2, 20c, 20c, 20c, 20c, 5c
-20F
From -20C to 50 C From -20C to 50 C
35
From -20C to 50 C From -20C to 50 C
The LCM is 60c.
$2, $1, 50c, 20c, 20c.
It is 1/20c, whose value will depend on c.
Value of old 1965 20c english