Explain why a sample containing 1 mole of silver (Ag) and a sample containing 1 mole of gold (Au) have the same number of atoms but diffrent masses. 3 to 4 sentence answer Please ? :)

Drug abuse will not lead to physical and psychological dependence. true or false ?

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)

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by