Determine the number of grams in 2.54x10^23 molecules of CO2 show work

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

When a scientific theory has been tested and proved by the scientific community, it becomes a law

Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules