Planets in our solar system do not revolve around the sun in perfect circles. Their orbits are more like ovals that scientists describe as which of the following?

A.

revolutionary

B.

rotational

C.

periodical

D.

elliptical

The same chemistry student has a weight of 155lbs what is the student weight in grams

How many atoms are present in 0.10mol of ptcl2 (nh3) 2?

As water boils and turns to steam, what happens to the hydrogen bonds? a. the hydrogen bonds become stronger. b. the hydrogen bonds break. c. the hydrogen bonds form a crystalline lattice structure. d. the hydrogen bonds generate additional bonds. e.

what are scientists who study fossils called? (a) astronomers. (b) biologists. (c) geologists. (d) paleontologists.

Which area would you expect to have more rain? An area that has very low humidity An area that is located near mountains An area that has very high humidity An area that is located next to a small lake

What is the name of the compound Sr3N2?

The water softener discussed here relies on precipitation softening also known as ion exchange. based o hte reactants used, what ions would remain in the softened water thaat would be consumed buy the homeowners

What would be the best technique to separate a soluble solid from a solution, like separating salt from a mixture of salt water?

What are metalloids used for

Which scientist developed the quantum mechanical model of the atom? a. Albert Einstein c. Niels Bohr b. Erwin Schrodinger d. Ernest Rutherford