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chemistry questions please answer them
In the presence of impurities or other contaminants hydrogen peroxide, H2020 decomposes to gaseous water and oxygen. The enthalpy of breakdown of pure hydrogen peroxide is abc kl. 2H2O2 → 2 H2O + 2 O2(g) . Input the value of abc in the blank If your answer is negative, include a negative sign . If your answer is positive, include a positive sign • Use values from the chemistry 30 data booklet in your calculation (pages 4 & 5) • Include the decimal • Do not include units . AM Question 10 (1 point) When heptane, C7H160), burns, 4816.7 kilojoules of energy is released from the overall reaction. The molar enthalpy of formation of heptane given gaseous products is abc.d kJ/mol. C7H16 + 11 02 7 CO2 + 8 H2O(g) + 4816.7 kJ • Input the value of abc.d in the blank • If your answer is negative, include a negative sign • If you answer is positive, include a positive sign Use values from the chemistry 30 data booklet in your calculation (pages 4 & 5) • Include the decimal • Do not include units A/