Do you think Hugh’s findings are valuable, despite the questions that remain?

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

Answer explain why it is not possible to deduce a complete order of reactivity.

The following transition occurs at a molecular level for a substance. what transition corresponds to this change in microscopic structure? the carbon dioxide molecules on the left are in a regular, tightly packed pattern. after heating, it becomes much lower density. a. melting b. boiling c. sublimation d. freezing