A compound is found to contain 68.54% carbon, 8.63% hydrogen and 22.83% oxygen. The molecular weightof this compound is appoximately 140 g/mol. What is the empirical formula? And What is the molecular formula

Newtons second law deals most cosely with

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a.the mitochondria b.the nucleus c.the vacuoles d.the endoplasmic reticulum

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory