Classify the following as an element, compound, homogeneous mixture, or heterogeneous mixture. Column A
1.
Salt:
Salt
2.
Chlorine (Cl):
Chlorine (Cl)
3.
Oxygen (O):
Oxygen (O)
4.
Hot chocolate with whipped cream and marshmallows:
Hot chocolate with whipped cream and marshmallows
5.
Black coffee:
Black coffee
6.
Pure water (H2O)

:
Pure water (H2O)

Column B
a. Compound
b. Heterogeneous mixture
c. Homogeneous mixture
d. Element

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.

Is laundry detergent an acid or a base?

The small bags of silica gel you often see in a new shoe box are placed there to control humidity. despite its name, silica gel is a solid. it is a chemically inert, highly porous, amorphous form of sio2. because water vapor readily adsorbs onto the surface of silica gel, it acts as a desiccant. despite not knowing mechanistic details of the adsorption of water onto silica gel, from the information provided you should be able to make an educated guess about the thermodynamic characteristics of the process. predict the signs for δg, δh, and δs for the adsorption of water.