A. Consulte y describa tres clases de reacciones químicas que se dan en los seres vivos b. Consulte tres reacciones químicas que se den en el ambiente y sean agentes contaminantes.

According to each substances heat of fusion, which of the items below requires more heat to be added per gram of substance to go from solid to liquid? silver sulfur water lead

What is the formula of the ionic compound composed of calcium cations and chloride anions

What do electromagnetic waves carry? how are they produced through which media can they move? where do they transfer energy? what do they not transfer? what do mechanical waves carry? how are they produced? through which media can they move? where do they transfer energy? what do they not transfer?