Astudent analyze two diagrams of a nitrogen atom. both diagram shows seven protons in the nucleus, but the number of neutrons differered. what are two nitrogen atoms? (a) electrons(b) isotopes(c) covalent bonds(d) ionic bonds

During chemistry class, carl performed several lab tests on two white solids. the results of three tests are seen in the data table. based on this data, carl has concluded that substance b must have bonds.

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Which three statements represent the benefits of performing experiments using computer simulations?