Which characteristic applies to all mixtures, including solutions? a) Mixtures must be composed of compounds.
b)Mixtures are composed of a single element.
c)Mixtures are composed of two or more substances.
d)Mixtures have uniform structures throughout entire samples.

One significant difference between an ionic bond, where electrons are taken from one atom and added to another atom, and a covalent or metallic bond, where electrons are shared is

An exothermic reaction is conducted in an insulated calorimeter filled with water. the calorimeter is then sealed so that there is no heat exchanged between the contents of the container and the surrounding air. which of the following statements is true about the reaction?

What is the mass of naoh that would have to be added to 500 ml of a solution of 0.20 m acetic acid in order to achieve a ph of 5.0?