Given the following pairs of elements, predict whether they will form a bond that is primarily ionic or covalent.   be able to explain lithium and oxygen fluorine and chlorine calcium and sulfur

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?

Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. an industrial chemist studying this reaction fills a 25.0l tank with 4.5 mol of sulfur dioxide gas and 4.5 mol of oxygen gas at 30.°c. he then raises the temperature, and when the mixture has come to equilibrium measures the amount of sulfur trioxide gas to be 1.4 mol. calculate the concentration equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. round your answer to 2 significant digits.

Which of the following units is not an official si unit? mole liter kilogram ampere