The radioactive isotope carbon-14 is used for radiocarbon dating. The half-life of carbon-14 is 5.730 x 109 years. A wooden artifact in a museum has a 14 C count that is 3.13 x 10-2 times that found in living organisms. Estimate the age of the artifact

Achemist wants to extract copper metal from copper chloride solution. the chemist places 0.50 grams of aluminum foil in a solution containing 0.75 grams of copper (ii) chloride. a single replacement reaction takes place. (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction? a) approximately 0.36 grams, because copper (ii) chloride acts as a limiting reactant b) approximately 1.8 grams, because copper (ii) chloride acts as a limiting reactant c) approximately 0.36 grams, because aluminum acts as a limiting reactant d) approximately 1.8 grams, because aluminum acts as a limiting reactant

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

Nonpoint source pollution is difficult to control because it