Se añade agua a 40 kg de óxido de calcio (cal viva) hasta obtener 52,8 kg de hidróxido de calcio (cal apagada). La ecuación ajustada de la reacción es:

CaO (s) + H2O (I) → Ca(OH)2 (aq)

¿Qué cantidad de agua ha sido necesaria para llevar a cabo esta reacción?

How many neutrons does a atom of cobalt have?

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.