A chemist weighted out 7.6 g of tin calculate the number of moles of tin she weighed out. Be sure yoir answer has the correct number of significant digits.

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

Amixture initially contains a, b, and c in the following concentrations: [a] = 0.300 m , [b] = 1.05 m , and [c] = 0.550 m . the following reaction occurs and equilibrium is established: a+2b⇌c at equilibrium, [a] = 0.140 m and [c] = 0.710 m . calculate the value of the equilibrium constant, kc.