How did fossil fuels come about? inorganic materials beneath the sea the remains of plants and animals millions of years old only dinosaur fossils sedimentary rocks on the tops of mountains

Can someone me with questions 12 and 13 plz.

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide