A student reads that propane gas is the main source of energy for outdoor grills. Propane gas is made up of carbon and hydrogen atoms. Propane has energy within its bonds.

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 has dissolved a certain substance in water. the chemist knows that more of the substance could be dissolved into the water before it stops dissolving. therefore

Exit what is the density of an object having a mass of 5.0 g and a volume of 45.0 cm3?