Who developed the polio vaccine?

George Marshall

Jonas Salk

Marie Curie

Carlos Finlay

An element's atomic mass does not include the mass of its Electrons Protons Neutrons

How does temperature affect the rate constant for a reaction? A. increasing temperature exponentially increases the rate constant B. increasing temperature linearly increases the rate constant C.

For the reaction so2 (g) + no2 (g) so3 (g) + no (g), the equilibrium constant kc is 18.0 at 1200ºc. if 1.0 mole of so2and 2.0 moles of no2 are placed in a 20.0-l container, what concentration of so3 will be present at equilibrium? a. 0.048 mol/l b.

Which is an empirical formula? (1) P2 O5 (3) C2 H4 (2) P4 O6 (4) C3 H6

What happens to an atom's atomic radius when it loses an electron?

In which one of the following solutions is silver chloride themost soluble? A. 0.744 M LiNO3 B. 0.0176 M NH3 C. 0.181 M HCl D. 0.181 M NaCl E. pure water

A 5.701 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis and 12.28 grams of CO2 and 5.029 grams of H2O are produced. In a separate experiment, the molar mass is found to be 102.1 g/mol.

One amu is equal to the mass of an electron the mass of one proton or one electron the mass of one neutron or one electron the mass of one neutron or one proton

Given an unknown mixture consisting of two more substances, explain how could you determine whether that mixture is a true solution, a colloid or a suspension

Which isotope of lithium has 3 neutrons?