Are both boiling sugar to make caramel and cellular respiration conserve mass?

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

Provide a stepwise curved arrow mechanism that fully explains the outcome of the reaction shown below. oh нао* heat он

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.