What do these skulls in the fossil record tell us about hominin evolution? The nose became more prominent as hominins evolved

Hominins grew taller as they evolved

The jaw grew relatively larger as hominins evolved

Human skulls became more pointed as hominins evolved

Which statement is best described as a atom

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.

Areaction in which products can react to re-form reactants is