The following solutions are added together: .5l of .5m hcl, 300 ml of .2m naoh, and 100ml of .4m ca(oh)2. calculate the concentration of the excess acid or base

In chemistry, the type of an atom (what element it is) is determined by: a) the number of protons it contains in its nucleus.b) the number of neutrons it contains in its nucleus.c) the number of protons it has in a cloud around the nucleus.d) the number of neutrons it has in a cloud around the nucleus.e) the number of electrons it exchanges with its neighbors.