When a forest burns and all that's left is some ash, where did most of the mass of the trees go? List the 2 molecules produced. What is the equation for combustion, starting with sugar and oxygen.

What reaction is taking place? 02 + c3h8 = h20 + co2

(1.6 × 10-19)(5.0 × 106) = c × 10d identify the missing numbers below to show the result of multiplying the numbers.

Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.