Answer:
The mass number tells us the number (the sum of nucleons) of protons and neutrons in the nucleus of an atom.
Explanation:
Answer:
A) Both Assertion and Reason are correct and reason is the correct explanation of assertion.
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So in order to answer this question you need to know how many moles are in 36.8g of magnesium. A mole of magnesium has a mass of 24.3 grams. 36.8/24.3 is about 1.51. This is how many moles are in 36.8 g of magnesium. Now you multiply this number by Avagadro's number which is 6.022E23. The total should be 9.12E23 atoms of magnesium.
The complete question is as follows: Which statement describes the way in which energy moves between a system reacting substances in the surroundings.
A) molecule Collisions transfer thermal energy between the system and its surroundings
B) The thermal energy of the system and it’s surroundings increase
C) The potential energy of the system and it’s surroundings increases
D) molecular collisions create energy that is then released into the surroundings
Answer: The statement, molecule Collisions transfer thermal energy between the system and its surroundings describes the way in which energy moves between a system reacting substances in the surroundings.
Explanation:
When there will occur an increase in kinetic energy of molecules then there will occur more number of collisions.
When kinetic energy between these molecules tends to decrease then they will release heat energy into their surroundings.
As a result, it means that molecule collisions transfer thermal energy between the system and its surroundings.
Thus, we can conclude that the statement molecule Collisions transfer thermal energy between the system and its surroundings describes the way in which energy moves between a system reacting substances in the surroundings.
