A laboratory analysis of an unknown sample yields 63.12% carbon, 8.85% hydrogen, and 28.03% oxygen. What is the empirical formula of the sample?

There is an area in idaho named craters of the moon where most of the ground is covered with basalt, adark gray, igneous rock with no visibl crystals. what can you infer about the geographical history of the area?

Astudent is asked to identify and element that is pale yellow brittle solid and does not conduct electricity. at which location in this periodic table would the element most likely be found?

Building glycogen from glucose molecules is an example of