a laboratory analysis of a sample finds it is composed of 38.8% carbon, 16.2% hydrogen, and 45.1% nitrogen. what is its empirical formula? give your answer in the form c#h#n#, where the number following the element’s symbol corresponds to the subscript in the formula. don’t include a 1 subscript explicitly. for example, the formula ch_2o would be entered as ch2o.

Does howard university superscore act

Explain how earth is like a giant bar magnet. how is our magnetic field made?

The ancestors of horses possessed feet with five digits. over time, with the development of grasslands, the digits fused and formed hooves. what evolutionary advantage did this transformation serve? a. it allowed them to climb rocky surfaces with ease. b. it allowed them to graze better. c. it enabled them to run faster from predators. d. it let them see clearly through the grasslands. e. it made them taller.