A pure sample contains only nitrogen and

oxygen atoms. If the sample is 30.4% nitrogen,

by weight, what is the empirical formula

of the molecule?

Why does the study of science have limitations

How do you read a potential energy diagram?

What are the 4 kingdoms listed in the Eukarya Domain? List all 4 Kingdoms

Which best describes the relationship between heat, internal energy, and thermal energy? O Internal energy is heat that flows, and heat is the part of thermal energy that can be transferred.

From the solubility curve, which of these salts is most soluble at 0°C? a.) NaCl b.) KBr c.) NaNO3 d.) KNO3

A student prepared a standard stock copper (II) sulfate solution with an absorbance value of 0.862. The student then decided to prepare a second solution containing copper (II) sulfate from the standard stock solution.

How do the results for methane compare to those for butane? does your experimental data verify charles's law?

How many grams of naoh would be needed to make 0.50 l of a 1.25 molar naoh solution? 2.5 grams 16 grams 25 grams 12 grams?

What makes salt an ionic compound?

Consider that cuo (s) + h2so4 (aq) reacts to give cuso4 (aq) and cuo (s) + k2so4does not give a product.