Density is calculated as mass divided by volume. We are given the mass of 15.0 grams, so we need to find the volume. For a cube, volume is calculated as (length of side)^3, so in this case, we have the length of a side as 44.5 mm, which is equivalent to 4.45 cm. Volume = (4.45 cm)^3 = 88.1 cm^3 Then we divide mass by the volume: Density = (15.0 grams) / (88.1 cm^3) = 0.170 g/cm^3 So the correct answer is A.
C7H16, where C=12.01, and H=1.01, so the weight of the molecule would be 7(12.01)+16(1.01), or 100.23. The percentage of carbon would be found by ((7*12.01)/100.23)*100=83.88% Carbon ((16*1.01)/100.23)*100=16.12% Hydrogen
Conduction - touching hot pot Convection - oven cycling warm air Conduction - touching a warm coffee mug Heat from a fire - radiation Heat from the sun to solar panel - radiation Warm water rising - convection
