If a sample of water has a mass of 200g and the final solution has a mass of 230g, how much solute dissolved in the water?

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

Which of two curves exhibits exponential growth

50 points! need answer asap. what type of organic compound contains the following functional group? (2 points)