Please help me, in order to get full points, put sig figs in each step and units

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Please help me, in order to get full points, put sig figs in each step and units thank you. = )

Given: 2CH3CHO(l) + 502(g) -> 4COz(g) + 4H20(I) Delta H = -2329.6 kJ Calculate the heat of formation of liquid CH3CHO, given the heats of formation of gaseous carbon dioxide and liquid water are -392.5 kJ and -285.8 kJ, respectively. If 10.0 g of liquid CH3CHO and 38.4 g of gaseous oxygen were combined, and the reaction shown by the above equation occurred to the maximum extent, calculate q for the reaction.

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