If you had 40 molecules of co gas in 250000 molecules of air, what is the concentration of co in parts per million?

What is the pH of a solution with hydroxide ion concentration of 0.005

How do prokaryotes perform pyruvate oxidation in cytoplasmn?

3. A certain paint has a density of 0.914 g/mL. You need to cover a wall that is 7.6 meters long and 2.74 meters wide with a layer of paint that is 0.13 mm thick.

Define A, Z, and X in the following notation used to specify a nuclide: AZX. Check all that apply. (A) Z is the mass number (number of protons - neutrons). (B) A is the chemical symbol of the element. (C) Z is the chemical symbol of the element.

Haw many H atom in tow H2O molecules

The temperature of a liquid is 75k what is the temperature im celsius

Balance this equation- Na3PO4 + KOH - > NaOH + K3PO4

Carbon dioxide, or CO2, is a (n) A.) atom. B.) mixture. C.) element. D.) compound.

If the atomic number of an element is 6 and its mass number is 20, how many neutrons are in the atom's nucleus?

A chemist exploring potential fuels for use in outer space is considering using vaporized aluminum chloride as a fuel.