Which of the following is NOT conserved during the combustion reaction of propane shown below? Select all that apply. C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(g)

moles of molecules
moles of atoms
atoms
mass
none of the above

Astudent made the lewis dot diagram of a compound shown. what is the error in the lewis dot diagram? a)an o atom should transfer all of its six electrons to mg because the formula is mgo b) both electrons of mg should be transferred to one o adam because the formula is mgo c) the electrons should be transferred from each o add him to capital mg because mg has fewer electrons d) the number of dots around mg should be four because it has to transfer two electrons to each o

Which of the following methods uses the decay of atomic particles in an object to find its exact age? a. fossil dating b. geologic dating c. radioactive dating d. relative dating

2. how is heavy water different from normal water