If an atom of sodium has 11 protons, what is its approximate atomic mass?

Which organic compound is most soluble in water? A) ethyne B) benzene C) butane D) ethanol

What is involved in redox reactions A. the transfer of electrons between reactants B. the bonding of ions to form chemical compounds C. the addition of water to break down food macromolecules D.

Which of these travels the fastest through a medium? atom photon sound electron

Which of the following has the most atoms per mole? a. BaSO4 b. NaNO2 c. KMnO4 d. KCl e. Na3PO4

The transfer of heat that occurs when energy moves from molecules to molecule is called

A flexible container is filled with 960.0 liters of air at 38 degrees Celsius. If pressure in the container does not change, at what temperature will the container have at a volume of 350.0 liters?

Which subatomic particles are paired with their charges? 1. electron-positive, neutron-negative, proton-neutral 2. electron-negative, neutron-neutral, proton-positive 3. electron-negative, neutron-positive, proton-neutral 4.

Where do you think information is coded in a DNA molecule?

The mole fraction of carbon dioxide in a gas mixture is. 200 there are also. 251 g of nitrogen and. 322 g of oxygen in this gas mixture what is the mass of arbon dioxide in this mixture

How do you do empirical formula