1: one gallon of gasoline (c8h18) is combusted in a container with 6.66 m3 oxygen. given: the density of oxygen is 1.43 g / l and the density of gasoline is 0.700 g/ml. find the mass of the reactant in excess. ( 1gallon = 3.7854 l and 1m3 = 1000 l)

Avoltaic cell converts chemical energy to

Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s

Calculate 9 ∙ 10-5 divided by 3 ∙ 10-9. (box after the "10" in answer is for the