What is the [h3o+] and the ph of a benzoic acid-benzoate buffer that consists of 0.17 m c6h5cooh and 0.42 m c6h5coona? (ka of benzoic acid = 6.3 × 10^−5). be sure to report your answer to the correct number of significant figures.

Which statements describe polyatomic ions? check all that apply. polyatomic ions have many charges. polyatomic ions have one overall charge. polyatomic ions repel other ions to form ionic bonds. polyatomic ions attract other ions to form ionic bonds. polyatomic ions are made up of only one type of atom. polyatomic ions are made up of two or more types of atoms.

Which change in temperature is the smallest? a change of 1 thomson degree a change of 1 kelvin degree a change of 1 fahrenheit degree a change of 1 celsius degree

Which of the following are good traits of a hypothesis? it will be able to be testedit can predict an outcomeit will explain the observationsall of these