Chem HELP - REACTIONS!!! URGENT?

How do you write the chemical equation for the combustion of ibuprofen (C13H18O2). Is this reaction balanced? Justify your answer.

Why is NO2 a balanced equation?

Is this reaction endothermic?

How do you write a chemical equation for the reaction in which sodium and water make hydrogen gas and sodium hydroxide (NaOH). Is this reaction balanced?

How can you write out a chemical equation for the reaction in which nitrogen triiodide makes nitrogen gas and solid iodine (I2). Is this reaction balanced?

Write a chemical equation for the combustion of ethyl alcohol (C2H6O). Is this reaction balanced?

Write a chemical equation for the combustion of ibuprofen (C13H18O2). Is this reaction balanced?

3 Answers

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  • Dr.A
    Lv 7
    1 decade ago
    Best Answer

    2 C13H18O2 + 33 O2 >> 26 CO2 + 18H2O

    2 Na + H2O >> Na2O + H2

    2NI3 >> N2 + 3I2

    C2H6O + 3 O2 >> 2 CO2 + 3H2O

  • 1 decade ago

    For the first question, I'm not sure what the question is; NO2 is a known gas. All the others are balanced.

    2 Na + 2 H2O ---> 2 NaOH + H2

    2 NI3 ---> N2 + 3 I2

    C2H6O + 3 O2 ---> 2 CO2 + 3 H2O

    2 C13H18 O2 + 33 O2 ---> 26 CO2 + 18 H2O

  • 1 decade ago

    baruch attah adonai- help this chic with her homework. i dont understand it. send her hazmat books please and whatever else to answer this!

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