The Theory of Continental Drift says that the continents were once joined together and are drifting apart. Who is given credit for coming up with this theory?
Charles Darwin
Alfred Wegener
Marie Curie
Alfred Wallace

Which three statements represent the benefits of performing experiments using computer simulations?

Determine the ph of 0.10 m nh3 solution. nh3 is a weak base with a kb equal to 1.8 x 10-5 round answer to nearest whole number.

Asolution of naoh has a concentration of 25.00% by mass. what mass of naoh is present in 0.250 g of this solution? use the periodic table in the toolbar if needed. 0.0625 g what mass of naoh must be added to the solution to increase the concentration to 30.00% by mass? g