100.000g of water at 80.0oC was mixed with an equal amount of cool water (T = 20.0oC) in a calorimeter. The final temperature of the water in the calorimeter is 50.0oC. What is the heat (q) in kilojoules for the cold water?

Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine

Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.

Which statement would indicate the presence of an acid