What is a device that changes electrical energy into mechanical energy?

Równania reakcji chemicznej

The rates of evaporation and condensation are equal at equilibrium. A. True B. False

Which of the following aqueous solutions are good buffer systems? 0.25 M ammonium nitrate + 0.40 M ammonia 0.23 M nitric acid + 0.20 M sodium nitrate 0.16 M potassium hydroxide + 0.22 M potassium chloride 0.39 M hypochlorous acid + 0.

balloon filled with water is places in a microwave until it bursts. Name two different physical changes that occur during this reaction

Which state of matter contains atoms that are completely ionized?

Consider the reaction below. The initial concentrations of PCl3 and Cl2 are each 0.0571 M, and the initial concentration of PCl5 is 0 M. If the equilibrium constant is Kc=0.

How many grams of carbon dioxide are in 11 moles of it?

A scientist heats a flexible container full of neon gas. What will most likely happen to the container as the gas absorbs heat? It will shrink, because the neon atoms will break apart into smaller pieces.

Name two alternative for solar power

In an oxidation-reduction reaction, what happens to the electrons in the reduction process? A. Electrons are bonded. B. Electrons are gained. OC. Electrons are lost. D. Electrons are replaced.