2. Now that we have a table of wavelengths for each metal cation, let's identify the metals in an unknown mixture of salts. In the video player below, what metal cations are present? Select all that apply: Na+ Li+ Sr2+ K+​

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 is an example of the practical pursuit of alchemy? a. forming perfect substances. b. transforming base metals. c. developing metalworking techniques. d. linking spiritual characteristics with material substances.

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.