What is the minimum energy required to decompose 765 g of PCl3, ...

[Themember4]

What is the minimum energy required to decompose 765 g of PCl3, according to the reaction below? The molar mass of PCl3 is 137.32 g/mol and may be useful.
 
  4 PCl3(g)  P4(s) + 6 Cl2(g) Hrxn = +1207 kJ
 
  A) 2.31  103 kJ
  B) 4.33  103 kJ
  C) 6.72  103 kJ
  D) 1.68  103 kJ
  E) 5.95  103 kJ

Question 2

Silicon dioxide is the compound that forms between silicon and oxygen.
 
  Indicate whether the statement is true or false

[tanna.moeller]

Answer to Question 1

D

Answer to Question 2

TRUE

[Themember4]

Thanks for the timely response, appreciate it

[ttt030911]

Wow, this really help