All of the following support the theory of continental drift except
a) the continents seemed to fit together like pieces of a pieces of a puzzle
b) there are similar fossils on different continents
c) mountain rangers on different continents lined up
d) the north pole and antarctica are covered in ice

Select the correct answer. when carbon dioxide dissolves in water, it sometimes reacts with water to form carbonic acid as in this balanced equation: co2 + h2o → h2co3. if 495 milliliters of carbon dioxide at 25°c and 101.3 kilopascals reacts with excess water, what is the theoretical yield of carbonic acid? use the periodic table and the ideal gas resource a. 0.889 g b. 1.10g c. 1.27g d. 2.02g what's the answer! quick!

When balancing a chemical equation:

Athe top of a hill, an athlete on a skateboard has x joules of mechanical energy. how much mechanical energy will she have at the bottom of the hill? ignore the effects of friction.