Which clue can be used to identify a chemical reaction as a combustion reaction?

oxygen is a product.

a hydrocarbon reacts with oxygen.

water and carbon dioxide react.

the reaction involves ions.

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

When svante arrhenius first proposed his acid-base theory, he was a doctoral candidate. his professors thought his ideas were unfounded. within a decade, the arrhenius theory of acid-base was widely accepted and praised within the scientific world. arrhenius defined acids as compounds having ionizable hydrogen and bases as compounds with ionizable a) barium. b) hydronium. c) hydroxide. d) oxygen.

Which of the following ocean acidification? are the most likely side effects of a ph less than 7.0 in the ocean b. more metal salts altering the ocean chemistry c. dissolution of the shells of marine organisms d. both a & b e. all of the above.