For the reaction H2(g) + 1/2 O2(g) → H2O(g)         ΔrH° = -241.8 kJ/mol,   what mass of H2(g) is required to liberate 1.00 × 103 kJ of heat?

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For the reaction H2(g) + 1/2 O2(g) → H2O(g)         Δr = -241.8 kJ/mol,

 

what mass of H2(g) is required to liberate 1.00 × 103 kJ of heat?

 

 

Draw the Lewis structures for each of the following reactions and the final compound represented in Lewis structure.

 

Ca + Cl +Cl 

 

Ba + O

 

Li + Li + O

 

Be + Br + Br

 

C + O + O

 

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