25. For the reaction: _N2 + _02 =_NO, balance the equation and determine the correct lowest mole ratio.

If 5 moles of N, reacted with 12 moles O, according to the above reaction, determine:
26. How many moles NO, are produced?
27. How many moles of N, are left in excess after the reaction (if any)?
28. How many moles of O, are left in excess after the reaction (if any)?

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

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.

How many grams of phosphorus are contained in 5.09 moles of phosphorus?