How many molecules of carbon dioxide would be formed if 6.75 g of propane is burned in the following reaction?

Find the protons, electrons and neutrons for strontium with a mass of 83

What is the value of the standard enthalpy of formation of an element in its most stable form?

The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth