Which formula represents a hydrocarbon?
(1) ch3ch2ch2cho
(2) ch3ch2ch2ch3
(3) ch3ch2ch2cooh
(4) ch3ch2cooch3

What is the overall order of reaction for rate = k[no]2[o2]

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

Consider this initial-rate data at a certain temperature for the reaction described by