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Questions in chemistry

[Done] What's the name of HOCl and HClO?

[Done] Explain why hydrogen and oxygen are considered elements, whereas water is not considered an element.

[Done] What is the meaning of NADPH2?

[Done] What is the major difference between a solution and an ordinary mixture?

[Done] Explain the advantages of crystallization over evaporation.

[Done] The density of aluminum is 2.70 g/cm\(^3\). A piece of aluminum foil that is 1000 cm on each side has a mass of 440 mg. How thick is the piece of foil?

[Done] How can the boiling point of a liquid be raised without adding a soluble impurity?

[Done] Which isotope is used to date ancient artifacts such as fossils?

[Done] What happens when red lead oxide is heated?

[Done] What are hydrocarbons?