Plz help with this im so confused

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

650.j is the same amount of energy as? 2720cal1550cal650.cal2.72cal

As we move from left to right across the periodic table, what is the general trend? a) atomic radii increase. b) electronegavitiy decreases. c) nuclear shielding increases. d) metallic character decreases.