Astudent thinks that halogens are highly reactive because their electrons are weakly attracted to their nuclei. which is evidence that disputes this student's idea? (2 points)
halogens react with alkali metals.
halogens cannot react with noble gases.
halogens tend to attract electrons when bonding.
halogens have a full octet of electrons.

Asmall amount of a solid is added to water. the observation made after fifteen minutes is shown in the figure. which of these solids has been probably added to water? a) oil b) sand c) sugar d) wood chips

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.

650.j is the same amount of energy as? 2720cal1550cal650.cal2.72cal