Given: the mass of one N atom = 14 units the mass of one O atom = 16 units

c. What is the total mass of one molecule of NO? Show work.

d. What is the % by mass of N and O in NO? Show work.

e. Using to represent an atom of nitrogen and to represent an atom of oxygen, draw a molecule of NO2.

f. What is the ratio by mass of N to O in nitrogen dioxide, NO2?
(leave your answer as a ratio of whole numbers)

g. What is the total mass of one molecule of NO2 ? Show work.

There are main groups in the modern periodic table of elements

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.