What hydrocarbons burn completely in an excess of oxygen, the products are
a) carbon monoxide and water b) carbon dioxide and water c) carbon monoxide and carbon dioxide d) carbon dioxide and carbon

Un cierto gas tiene un volumen de 800ml a 80°c y 600ml a 80°c y 600mmhg de presión. ¿cual será el volumen del gas a condiciones normales? sí el gas es oxígeno, ¿cuál será su peso? y ¿cuántas moléculas están presentes en el sistema?

An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.

When electrolyzing copper (ll) chloride, what reaction takes place at the anode? what reaction takes place at the cathode?