7. The model of the universe that suggests that the sun is the center of the universe was first brought by

A. Brahe.

B. Ptolemy.

C. Copernicus.

D. Kepler.

Which subatomic particle is the identity of the atom and why?

Which of the compounds of h2c2o4, ca (oh) 2, koh, and hi, behave as acids when they are dissolved in water?

Smog is the term used to describe the combination of fog and smoke

What type of energy is a ball on the top of a hill

Identify the Lewis acid in this balanced equation: Central N is bonded above, left, and below to C H 3 and has 2 electron dots to the right. Plus. B is bonded above, below left, and below right to H. right arrow.

In 1864, the Solvay process was developed to make soda ash. One step in the process is represented by the balanced equation below.

A chemist must prepare of aqueous potassium permanganate working solution. He'll do this by pouring out some aqueous potassium permanganate stock solution into a graduated cylinder and diluting it with distilled water.

What is the best name for the molecule below? a compound with 10 total carbons with a double bond and the rest single bonds.

What Word means the gradual change and build up of organisms in an enviroment

If you see the Sun is high in the sky, what can you say about the SUN as viewed from the opposite side of Earth at the same moment?