Answer:324 hours (13.5 days)
Explanation:see attached photo
Help please! I don’t understand this
1 answer:
I don’t really know how to explain how to write electron configurations in a short paragraph so maybe look up a video? It’s really easy to understand once you get the hang of it but i’ll attach a picture to help you write electron configurations for any element. Try to think of it as reading the periodic table from left to write until you end up on the element.
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Answer:
The correct answer is option B.
Explanation:
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.
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.
On mixing of both solution we had observed that temperature of the resulting solution was lowered this is because the energy was absorbed during the chemical reaction.