31. If 1.204 x 1024 atoms of a certain element weigh 80g, what will be the molar mass of

the element?

A. 80g

D. 160g

B. 120g

C. 409

When planning a tour of latin america that specifically excludes a country, which map would be best to use? A - thematic map B - political map C - physical map D - Mercator map E - crime map

Is the speed of sound the same at all depths? Explain

Future skies. as a red giant, the sun will have an angular size in earth's sky of about 30°. what will sunset and sunrise be like? do you think the color of the sky will be different from what it is today? explain.

1-4. Energy Forms and Examples (10 pts) List and briefly explain the form/type of energy (given in class) with a practical example, and state its importance.

Why is one side of the moon called "the dark side of the moon" A. the moons rotation time is exactly half the time of its revolution B. the moons rotation and revolution take the same time. C.

The area just north of Lake Baikal is called?

When the Europeans traveled the Mississippi and the Amazon rivers, what did they bring to the native peoples of both continents? A. Gifts and wisdom B. Exotic plants and animals C. Smallpox and other disease D. Technology and knowledge

What are the major controlling factors for the variations of the water mass in the ocean?

The climatic effect that influences precipitation and air flow locally is

Does oceanwater contain any other minerals than salt