What is the percent by weight of sodium in sodium sulfate (na2so4)? (the molar mass of na = 22.99, s = 32.07, and o = 16.00.) 16.18% 22.58% 32.37% 45.05% 51.17%

What is true for a substance that releases energy

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

How many moles are contained in 5.6 l of h2 at stp