One joule equals the amount of work that is done when 1N of force moves an object over a distance of

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

What occurs during a combustion reaction

The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.