How long will it take for 100 grams of a substance with a half life of 2 years to decay to a mass of 50 grams?

A gas has an intial volume of 2.75L at a temperature of 285K. if the temperature changes to 380K, what is the new volume of the gas if the pressure is unchanged?

What statement is MOST accurate about a chlorine ion? A) The chlorine ion is a result of chlorine's relatively low electronegativity. B) The ionic radius of a chlorine ion is larger than the radius of a chlorine atom.

5 examples of corrosion found in our everyday lives

What is the molarity of a solution that contains 1.1 moles of lithium in 0.5 liters of solution?

Why is it often difficult to determine the actual pathway for a chemical reaction?

What reaction shows one element taking the place of another in a compound?

An industrial chemist is studying a sample of an unknown metal. Describe two ways he could change the metal physically and two ways he could change the metal chemically to try to identify it.

Which of the following elements is the most nonreactive? H, fe, Au, O, Ne

Which is most likely why many scientists reject the cold fusion theory? There is too much waste involved in the process. Cold fusion experiments have been conducted at room temperature only.

What is the solubility of m (oh) 2 in a 0.202 m solution of m (no3) 2? ksp 4.45*10^-12?