combustion of 25.0 g of a hydrocarbon produces 85.9 g of co2. what is the empirical formula of the compound?

The measure of the angles supplement is 30 more than four times that of its complement. find the measure of the angle described

Which group of college students is typically offered scholarship? a. freshmen, sophomores, and juniors. b. biology, english, and engineering majors. c. hard workers, part-time students, and out of state students. d. first time freshmen, current students, and transfer students.

Need will give 100 ! in no less than one hundred fifty words, explain why it is important for engineers to sketch designs and use them to clarify their designs to other people, giving at least three reasons.