Two clear solutions are placed in separate beakers, the first solution has a pH of 4 and the pH of the second solution is unknown. If the two solutions are mixed and the resulting pH is 5 then the second solution must have:

a. Fewer suspended solids
b. A higher temperature
c. More dissolved NaCl particles
d. A higher concentration of OH-ions

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.

How does concentration affect reaction rate

Which phrase best defines a mountain eee