Lilly places a rock on the platform of a triple beam balance. she slides the first weight out to the 100g mark, the second weight out to the 70g mark, and the third weight out to the 8.2g mark. What is the mass of the rock

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.

Oil rich countries in the middle east cover about 4% of earths total land area but prossess about 48% of the worlds known oil reserves what is the main reason for high concentration of reserves in this part of the world

This statement about matter and its behavior is best classified as a