What is the formula weight of aluminum sulfate, Al2(SO4 ) 3?

A) 75.1 amu
B) 150.2 amu
C) 342.2 amu
D) 369.7 amu


C

Environmental & Atmospheric Sciences

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Which of the following statements describes the mid-Holocene climatic optimum?

A. Continental ice sheets began to melt. B. Alpine glaciers began to advance down river valleys. C. Average temperatures were colder than at present. D. The climate favoured the development of certain plants.

Environmental & Atmospheric Sciences

In the natural world, where humans are not dominant, there is essentially no waste

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Why does adding water to sand increase the angle of repose for the material?

A) Water increases friction. B) Water increases cohesion. C) Water increases the oversteep angle. D) Water decreases friction.

Environmental & Atmospheric Sciences

The Mesozoic Era is known as the age of ____

A)reptiles B)dinosaurs C)Pangaea D)angiosperms E)flowering plants

Environmental & Atmospheric Sciences