The answer is C which is PbSo
This is how it starts it's cycle
Answer:
Silicone Dioxide
Explanation:
It is found on sand since ancient times and also a major component of glass..I have heard of a case when a lightning hit the sand and the sand actually turned into a somewhat glasslike figure
Molality of C2H5OH is 1.1.27m.
What is Molality?
Molality is no.of moles present in One Kg solution .
Molality is represented by m
m= no.of moles/ weigt of solution in kg
Given is Molarity= 51.30M
molar mass of C2H5OH is 46g / mol , Density =0.9349g/ ml
Density=m/V
V = 107 ml
Molarity= no of moles/ Volume
51.5×46×107= x × 1000
weight of C2H5OH = 27.7g
molality = 27.7/1000××46
m= 1.27m
to learn more about Molality click brainly.com/question/20380670
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