Answer:
D
Explanation:
A reaction that is exothermic and causes a decrease in the entropy of the system cannot be a spontaneous reaction. This is not totally true because naturally For a spontaneous process, the entropy of the universe (system plus surroundings) must increase. This is the 2nd law of thermodynamics. The system entropy can decrease as long as the entropy of the surroundings increases enough to make the sum of the system and surroundings positive.
And we know that a spontaneous reaction is a reaction that occurs in a given set of conditions without intervention. Spontaneous reactions are accompanied by an increase in overall entropy or disorder. If the Gibbs Free Energy is negative, then the reaction is spontaneous, and if it is positive, then it is nonspontaneous.
Hey there!
The correct answer is sodium or sodium chloride. Basically, table salt.
Hope this helped!
So you find the atomic mass in amu, and the molar mass would be in grams.
The second one
only bases turn litmus paper blue
Hey there,
Question : An element is a substance that?
Answer : An element is a substance that cannot be separated into simple substances.
Hope this helps :))
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