Use the reaction 12(s) this question.
12(9), AH = 62.4 kJ/mol, AS = 0.145 kJ/(mol-K), for
What can be said about the reaction at 500 K?
A. It is exothermic.
B. It is spontaneous.
C. It proceeds rapidly.
D. Its entropy decreases.

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?

This large tectonic plate is bounded on three sides by whats know as the ring of fire. what is the name of this tectonic plate? a) pacific plate b) eurasian plate c) north american plate d) indo- australian plate plz it's science but there's no option for science so i picked chemistry

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.