Two isotopes of gallium are naturally occurring, with 6931Ga at 60.11% (68.93 amu) and 7131Ga at 39.89% (70.92 amu). Calculate the atomic mass for gallium using the weighted average mass method.

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0

Explain what happens at the saturation point when adding salt to water at room temperature.

Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins.co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)