For a particular redox reaction cr is oxidized to cro24– and fe3 is reduced to fe2 . complete and balance the equation for this reaction in basic solution. phases are optional.

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.

The identities of substances are the same before and after which type of change

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?