How many moles of carbon atoms are there in 0.500 mol of C2H6?

Matter changing from a solid to a gas is called: A evaporation B sublimation C deposition D Melting

A 5.25 L tank holds helium gas at a pressure of 1655 psi. A second 5.25 L tank holds oxygen at a pressure of 440.0 psi. The two gases are mixed in a 5.25 L tank.

Which of the following would cause an increase in the pressure inside a sealed container of gas? A. an increase in the size of the container / B. removal of half of the gas / C. a leak in the container / D. an increase in temperature

What is the pH of a 0.1 M HCl solution?

The average atomic mass of oxygen is 15.9994 amu. The atomic masses of its three isotopes are as follows: O-16: 15.995 amu; O-17: 16.999 amu; O-18: 17.999 amu Which isotope is most likely to have the greatest abundance in nature?

Copper (cu) is a transition element used in the making of coins. calculate the mass in grams of 0.0420

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