If you start a bonfire and burn logs that contain 2kg of carbon. You bring the remains back to the lab and see that there is now only 1kg of carbon in
the ash. Have you violated (gone against) the Law of Conservation of
Matter? Why or why not?

Supongamos que estás estudiando dos estrellas. ambas estrellas tienen la misma magnitud aparente, pero la estrella a tiene una magnitud absoluta mayor que la estrella b. ¿que puedes decir acerca de la distancia a la tierra de estas dos estrellas?

Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)