calculate the empirical formula of the following compounds from their percentage composition by mass (a) Ca=71.45%, O=28.55%

__ _ _ _ _ is the process of removing earth materials from their original sites through weathering and transport and depositing the in another location. a. erosion b. sedimentation c. lithification d. dissolution

0.09 moles of sodium sulfate in 12 ml of solution

Enzymes affect the reactions in living cells by changing the