If you go to school for 180 days each year, and each day is 7 hours long how many hours are spent in one school year?

Calculate the percent error in calculating the pH of a 0.040 M HCl solution that is also 0.010 M in HNO3 using ionic strength and activity coefficients and without using that.

What is a characteristic of a lewis base?

35.5 moles of lithium fluoride is dissolved in 65 L of solution

Humans are protected from some infections by specialized cells which produce chemicals that

Calculate the wavelength of the laser light for a) d = 1/500 mm and b) d = 1/1000 mm. Use the modified "grating equation" given below: nλ =

A substance that does not conduct electricity as a solid but does conduct electricity when melted is most likely classified as (1) an ionic compound (2) a molecular compound (3) a metal (4) a nonmetal

What is done with the reactive sodium after the reaction to make sure the products are safe in an air bag?

Which of the following does not indicate a chemical change? precipitate formation crushing a solid into a powder color change gas evolution

Reactions cannot occur without a certain minimum amount of energy. what is this minimum amount of energy called?

What are the products of the alpha decay of Iodine-131?