Answer: The activation energy is 10 kJ and the reaction is exothermic.
Explanation: Exothermic reactions are those in which heat is released and thus the energy of products is less than the energy of reactants.
Endothermic reactions are those in which heat is absorbed and thus the energy of products is more than the energy of reactants.
Activation energy is the extra amount of energy required by the reactants to cross the energy barrier to convert to products.
Given : Energy of reactants = 40kJ
Energy of activation: (50-40)=10 kJ
Energy of products = 50 kJ
Energy of products = 15 kJ
Thus Energy of products (15kJ) < Energy of reactants(40kJ), the reaction is exothermic as energy has been lost to surroundings in the form of heat.
Answer:
laws
Explanation:
in some areas and countries there is a limit on how many children someone can have, this would clearly regulate population growth.
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Basically all of the elements found in Group I of the periodic table also have this property. The ability to easily give up a single valence electron.
Answer:
1. B
2.C
3.D
4.Sorry don't this one :(
5.A
Explanation:
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