Answer:
7.6923%
Step-by-step explanation:
Let y% be the percent of 520.
520y = 40
y = 0.076923...
y = 7.6923%
I will assume here that we know the molar mass of sulfur, which is 32 g/mol (around).
this means that 0.5 moles will have half of it - the first option is correct!
8 moles will have 8 times this, which is 256 - the second option is not correct!
3 moles would have 96 grams -third option is not correct!
and we also know that 96 grams can't be 4 moles - so the forth option is not correct either
I remember doing the last question.
If you recall, x = 29
Just plug 29 into x for each angle
A = 3(29) = 87
B = 2(29) + 1 = 59
C = 29 + 5 = 34
SOLUTION
Total number of balls is 1000
Red balls are 700
Number of blue balls will be
Hence the number of blue balls is 300.
So you simply subtract 700 from 1000 to get 300.
