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How many kilojoules are released

  1. When hydrogen peroxide (H2O2) is used in rocket fuels, it produces water, oxygen, and heat.2H2O2(l)⟶2H2O(l)+O2(g)ΔH=−196kJ
    1. answers icon 1 answer
    2. marcy asked by marcy
    3. views icon 8,040 views
  2. Consider the reaction, C2H4 (g) + H2 (g)- C2H6 (g) where -137kJ of heat is released.How many kilojoules are released when 55.3g
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    2. Sandy asked by Sandy
    3. views icon 9,222 views
  3. How many kilojoules are released when 85.0g methanol is burned?
    1. answers icon 1 answer
    2. SugarBear asked by SugarBear
    3. views icon 685 views
  4. How many kilojoules are released when 85.0g methanol is burned?
    1. answers icon 1 answer
    2. Kim asked by Kim
    3. views icon 559 views
  5. How much heat (in kilojoules) is released on reaction of 5.30 g of Al?
    1. answers icon 1 answer
    2. Donny asked by Donny
    3. views icon 942 views
  6. Consider the reaction, 3 NO2(g) + H2O(l) ® 2 HNO3(aq) + NO(g),where DH = – 137 kJ. How many kilojoules are released when 92.3
    1. answers icon 3 answers
    2. jerry asked by jerry
    3. views icon 4,256 views
  7. How much energy (in kilojoules) is released when 21.0 of ethanol vapor at 94.5 is cooled to -19.0?
    1. answers icon 1 answer
    2. chem asked by chem
    3. views icon 678 views
  8. How many kilojoules are released when 130 g of Si reacts with chlorine?Si(s)+2Cl2(g)→SiCl4(g)ΔH=−657kJ
    1. answers icon 1 answer
    2. Cara asked by Cara
    3. views icon 2,484 views
  9. How many kilojoules are released when 115 g of Si reacts with chlorine?Si(s)+2Cl2(g)→SiCl4(g)ΔH=−657kJ
    1. answers icon 1 answer
    2. Alex asked by Alex
    3. views icon 764 views
  10. How many kilojoules are released when 90.0 methanol is burned?I know the answer is 1020 kj but have NO idea how to get it, or
    1. answers icon 1 answer
    2. michelle asked by michelle
    3. views icon 491 views