Experiments with cathode rays led to the discovery of the a neutron. b proton. c electron. d nucleus.

A sample of gas at a pressure of 124 kpa has a volume of 3.00 L if the gas is compressed to a volume of 1.26 L, what is the new pressure?

Radioactive cobalt-60 is frequently used in treating cancer. It took 24 years for a 10 gram sample to decay to 0.625 grams. What is the half-life of the sample?

A sample of gas has an initial volume of 3.88 l at a pressure of 707 mmhg. part a if the volume of the gas is increased to 5.43 l, what will the pressure be? (assume constant temperature.)

N2O4 (g) 2NO2 (g) Which of the following represents the Keq value? 0.18 0.0067 0.131 0.0046

What is the specific latent heat of a fussion for a substance that takes 550 kj to melt 14 kg at 262 k?

What is the net charge on an ion that has 9 protons, 11 neutrons, and 10 electrons? (1) 1 + (3) 1- (2) 2 + (4) 2-

The structure of the periodic table is based on the distribution

Which of the following prefixes means seven

How many moles are in 1.84x10^24 formula units of CaCl2, calcium chloride?

Which is the correctly balanced chemical equation for the reaction of KOH and H2SO4?