2020-2021 CP Review HW For Balancing, Types, And Energy Change Of Chemical Reactions

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Part I: Balance the chemical reaction and give the correct type of reaction for the following:

1) ___ Ca₁Br₂ + ____ Na₃P₁ ==> ____ Ca₃P₂ + ____ Na₁Br₁  Type of Rxn:____________________

2) ___ Li₃P₁O₄ ==> ____ Li + ____P + ____ O₂  Type of Rxn:____________________

3) ___ C₈H₁₈ + ____ O₂ ==> ____ C₁O₂ + ____ H₂O₁  Type of Rxn:____________________

4) ____ Al  + ___O₂ ==> ____ Al₂O₃  Type of Rxn:____________________

5) ____ Au₂S₃  + ____H₂ ==> ____Au  + ____H₂S₁  Type of Rxn:____________________

Part II
Answer the following question in clear and concise manner (using appropriate word from the learned material)

6) ______________ is the state that exists for a brief moment (a billionth of second) before the particles rearrange into the products?

7) Potential energy of the reactant (PE_r) is _________ compared to the potential energy of the product (PE_p)8)in an Exothermic rxn.