Imagine that a radioactive isotope has a half-life of 2 years. A sample contains 1000 atoms of the radioactive isotope. Complete the following table to predict how many atoms of the radioactive isotope remain in the sample over time.

Which of the following is true for the actual yield of a reaction? it is always calculated as a ratio. it is the yield from the excess reactant. it is the yield from the limiting reactant. it is always less than the theoretical yield.

What is the percentage composition of carbon in the compound ch4

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory