What is true of solids? O They take the shape of the container and don't have a fixed volume.
O They take the shape of the container and have a fixed volume.
O They have a fixed shape and a fixed volume.
O They have a fixed shape but not a fixed volume.

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

Avariable that is not being directly tested during an experiment should be

Identify the lewis acid in this balanced equation: ag+ + 2nh3 -> ag(nh3)2+a. ag+b. nh3c. ag(nh3)2+