How many moles of oxygen gas are required when 0.52 moles of carbon dioxide are produced?
2C8H18 (1) + 2502 (g) --> 16CO2 (g) + 18H20 (g) (balanced)

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

What does a complete balanced chemical equation include? a. exothermic coefficients b. endothermic coefficients c. valence electrons d. molar coefficients