Match the properties to the family of elements they describe. Family’s are Alkali Metals and Halogens.

List of properties
• are placed in group 12
•are placed in group 1
•are placed in group 17
• can be cut with a knife
• react vigorously with metals
• don’t react with any other elements

Plz help

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.

If one fission reaction of a uranium-235 atom produced two neutrons, how many neutrons would be released if the chain reaction occurred three more times?

Which substance can be broken down by chemical means