All of the following are characteristics of viruses except: a. viruses are smaller than cells. b. viruses can be different shapes. c. viruses live as parasites. d. viral diseases are curable.

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.

In an exothermic reaction, energy may be released to the surroundings in the form of question 4 options: heat light thermal all of the above

Which of the following isotopes has the same number of neutrons as phosphorus-31?