Suppose you read in the newspaper that a chemist in south america claims to have discovered a new element with an atomic number of 34. an extremely rare element, it was found in a sample recovered from the andes mountains. unfortunately, he has used up all of the sample in his analysis.

In a water molecule, hydrogen and oxygen are held together by a(an) bond. a) double covalent b) ionic c) nonpolar covalent d) hydrogen e) polar covalent

What is the molar mass of a gas that has density of 2.054 g/l

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together