How do we know that caramelizing sugar is a chemical change? it involves dissolving sugar in water. it changes the state of sugar from a solid to a liquid. it separates sugar from a sugar solution. it changes the sugar's color.

Often on a topographic map, every fifth contour line is darkened. what is this line called? a. key b. slope c. benchmark d. index contour

24. a sports ball is inflated to an internal pressure of 1.85 atm at room temperature (25 °c). if the ball is then played with outside where the temperature is 7.5 °c, what will be the new pressure of the ball? assume the ball does not change in volume nor does any air leak from the ball a) 0.555 atm b) 1.74 atm c) 1.85 atm d) 1.97 atm

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned