Which material in the picture absorbs the most light

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

Acompound has a molecular weight of 12.124 atomic mass units and the empirical formula c3h40. what is the molecular formula of the compound?

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2