Choose ONE variable: amount of water, type of cup, # drops food coloring, when food coloring added Why did we make sure it was the same between the two cups? (control)
HELP PLEASE ASAP!!!

Chemical kinetics what was the rate of reaction in trial 3? choose the closest answer.

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.

One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)