Cómo calcularías la masa molecular de una mezcla como el aire ? ¡Ayudaa!​

the first settlements began along the huang river because of the importance of the huang river in the beginning of china. it goes back to the story, “the tale of emperor yu”, which references the tale of the great flood, which was caused by the huang river and was believed to create and influence china’s making.

"choosing is refusing" means individuals face an opportunity cost with each decision they make. economists state that every decision involves trade-offs. opportunity cost is the least desirable alternative given up as a result of a decision.

step 1. boil eggs

step 2.eat eggs

step 3. get your hot poonts ready