How many moles of Cu in 7.81 * 10^21 atoms of Cu

What electronic structure do most of the noble gases have in common

What does the electron transport chain do to the concentration of hydrogen ions (protons) ?

Determine the volume of hexane that contains 5.33 * 1022 molecules of hexane. The density of hexane is 0.6548 g/mL and its molar mass is 86.17 g/mol. Determine the volume of hexane that contains 5.33 * 1022 molecules of hexane.

Experiments with cathode rays led to the discovery of the a neutron. b proton. c electron. d nucleus.

Which coefficients balance the following equation? __ KClO3 = __ KCl + __ O A. 2, 2, 2 B. 1, 1, 1 C. 1, 2, 1 D. 2, 2, 3

If the temperature is constant what change in volume would cause the pressure of an enclosed gas to increase by a factor of 4

For the reaction of carbon with carbon dioxide to make carbon monoxide, one set of conditions produced a Kc = 1.2 * 10-1. At equilibrium at a certain temperature, the concentration of product was 0.60 M.

Water is a colorless and odorless liquid. It can exist in solid, liquid, and gas states. It boils at 100 degrees C and melts at 0 degrees C. Which option best describes this information? A. These are the physical properties of water. B.

What can happen to a supersaturated silution?

What is the source for georthermal energy