Couple of chemistry questions im so confused please help?

Question

Answer the following questions based on dissolving ammonium nitrate in water. The balanced equation is given below.
NH4NO3(s)+H2O(1)+energy---> NH4+(aq)+NO3-(aq)+H2O(1)
1.based on the information given in the chem. equation, what temperature change would you expect in the reaction
2.Is this an endothermic or exothermic reaction?
3.List at least three of the everyday uses of nuclear reactions that you learned about
4.what radioactive technique is used to determine the age of fossils
5. List one advantage and one disadvantage of using nuclear power plants to produce electricity
6.Carbon -14 undergoes beta decay to become another element. What is the new element?What is the product of the radioactive decay?

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write the balanced equation for the following reaction: the fuel used in gas grills is called propane (C3H8) propane reacts with oxygen gas(O2) found in the air to produce carbon dioxide gas (CO2) and water vapor(H2O)

Answer 1

1. Decrease. It will take heat to dissolve, not give off heat.
2. Endothermic
3. You'll have to look at your notes or the book.
4. Potassium-argon
5. No greenhouse gases.
5. Nitrogen; an electron.

C3H8 + 5O2 ===> 3CO2 + 4H2O

Answer 2

Lancenigo di Villorba (television), Italy You began as quickly as yo unsuitable HYDROBROMIC ACID itself! HYDROBROMIC ACID Ionic call = Hydrogen Bromide Ionic formulation = HBr (H3BO3 IS BORACIC ACID) CARBONIC ACID Ionic call = TRIOXOCARBONIC(IV) ACID Ionic Fomula = H2CO3 SULPHURETTED HYDROGEN Ionic call = HYDROGEN SULPHIDE Ionic Fomula = H2S PERCHLORIC ACID Ionic call = TETRAOXOCHLORIC(VII) ACID Ionic Fomula = HClO4 i'm hoping this helsp you.