Give one source of chlorine gas

A solution is made by dissolving 5.84 grams of NaCl

How can pure dry crystals of calcium chloride be obtained from a solution of calcium chloride

How many molecules are contained in two 540.-mg tablets of penicillin (C16H18N2O4S, molar mass 334.4 g/mol) ? Report your answer with the appropriate number of significant figures.

How is mass of a substance connected to its amount in mole (s) ? a) Amount in mole = Mole ratio / Molar Mass b) Amount in mole = Mass / Molar Mass c) Amount in mole = Mass / Mole ratio d) Amount in mole = Reactant mass / Molar Mass

Descibe 2 everyday situations that would require you to identify an unkown sustance

Where are two places that scientists obtain scientific knowledge

Which of the following best describes what happens when an ionic bond forms? A) two atoms come together and share electrons in order to fill their octets. B) two atoms give up their electrons in order to form a bond.

Describe the attraction between 2 atoms as a result of sharing electrons

I need to know about mitosis and meiosis

What is sediment and debris, and what role does it play in the way sedimentary rock forms?