If a scientist has 24 grams of CH4, what is the theoretical yield of Czo2 that can be produced? CH4 + 2O2 = CO2 + 2H2O

The answer is the first option just took the test

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).

Ithink about 50 % of an original isotope's number of atoms remain