Answer:
helium , krypton,xenon,radon, argon are noble gasses
Exothermic reaction is where there is release of energy during a reaction
The enthalpy of exothermic reaction is negative
The relation between energy of products, reactants and enthalpy of reaction is
Enthalpy of reaction = sum of enthalpy of formation of products - sum of enthalpy of formation of reactants
.
As enthalpy of reaction is negative, it means the enthalpy of products is less than the enthalpy of reactants so answer is
:
In an exothermic reaction the energy of the product is less than the energy of the reactants.
Increases. It gets harder to breathe and keep the rhythm.
Answer:
Global wind
Explanation:
The jet streams go around the whole earth from west to east
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