Please check my answers to two questions.
The first one would point towards the wax and the second one would point to the ice, correct?

What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?

Match the acid base pairs by arranging the acid name with the conjugate base formula. hydrogen carbonate hydrogen phosphate carbonic acid read water sulfuric acid phosphoric acid a. co32- b. hso4- c. hco3- d. po43- e. h2po4- f. oh-

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh