What type of energy is stored in batteries? A. Electrical energy B. Gravitational potential energy C. Heat energy D. Chemical energy

What volume of a 2.00 m stock solution of naoh is needed to prepare 150. ml of 0.40 m solution?

Aradio signal from a gps satellite take only about 0.067 seconds to reach a gps reciever. if the speed of light is about 300,000km/s, then approximately how far away is the reciever from from the satellite?

The rate constant for the reaction below is 6.2 x 10−5 mol l−1 s −1. if the initial concentration of a is 0.0500 m, what is its concentration after 115 s?