A hydrate of CoCl2 with a mass of 6.00 is heated strongly, after cooling the mass of the anhydrate is 3.27g. how many grams of H2O were lost from the hydrate

Most of the volume of an atom is occupied by

The Haber process for producing ammonia commercially is represented by the equation N2 (g) + 3H2 (g) - > 2NH3 (g). To completely convert 9.0 mol hydrogen gas to ammonia gas, how many moles of nitrogen gas are required?

How and when did scientists discover cells

If a roller coaster train has a potential energy of 1,500 J and a kinetic energy of 500 J as it starts to travel downhill, it's total energy is

How many valence electrons does Al have

Why can't you balance a chemical equation by changing the subscript?

Which level of organization is best represented by the corn plant? tissue, the highest level of organization organ, the lowest level of organization organism, the level of organization directly above organ system organ system, the level of

What is one product of a condensation reaction between two amino acids, such as glycine and alanine?

A solution is made by dissolving 25.20 g of aluminum acetate in 185.0 mL of water. What is the concentration of acetate ions?

Which best describes how sediment forms? erosion breaks down rock and other material molten rock cools above earths surface loose material is cemented by pressure chemical changes cause sediment to compact together