If a cat climbs a tree , what chemical process is taking place to provide the power for this movement?

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?