Identify the following as elements or compounds: NH3, N2, S8, NO, CO, CO2, H2, SO2.
1 answer:
Answer and Explanation:
Elements : these are not compounds because for making compound there should be at least combination of two different elements but
are made up of same type of elements so these are elements
Compounds: these all are compound because they are made up of different types of elements after combining together
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Answer:
The total enthalpy of the reaction has negative value which mean that the heat is lost during the chemical reaction into surroundings.
Explanation:
Exothermic reactions are defined as the reactions in which energy of reactants is more than the energy of the products. In these reactions, energy is released by the system.
The total enthalpy of the reaction comes out to be negative.
Endothermic reactions are defined as the reactions in which energy of products is more than the energy of the reactants. In these reactions, energy is absorbed by the system.
The total enthalpy of the reaction comes out to be positive.
,ΔH= -1235.7 kJ/mol
The total enthalpy of the reaction has negative value which mean that the heat is lost during the chemical reaction into surroundings.