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How many kJ of heat are absorbed when 7.50g of MgO decomposes into Mg&O2 according to the thermochemical reaction below? 2MgO(s)2Mg(s)+O2(g)H=+1204kJ Enter the VALUE only

How many kJ of heat are absorbed when 7.50g of MgO decomposes into Mg&O2 according to the thermochemical reaction below? 2MgO(s)2Mg(s)+O2(g)H=+1204kJ Enter the VALUE only (and watch your sign)

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