An archeological artifact has a carbon-14 decay rate of 2.75 dis/min·gc. if the rate of decay of a living organism is 15.3 dis/min·gc, how old is this artifact? assume that t1/2 for carbon-14 is 5730 yr.1.42 × 104 yr1.209 × 10−4 yr6.16 × 103 yr1.03 × 103 yr

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution?

What is the mass of 4 molecules of co2

Ill give brainiestif one neutron initiates a fission event that produces two neutrons in the products, how many new reactions can now be initiated? if each of the neutrons produced in the first fission event then initiates a fission event that produces one neutron in the products, how many new reactions can now be initiated by each neutron? how many neutrons in total were produced by the two fission events described?