Moles of MgS2O3 = 223/molar mass of MgS2O3
= 223/136.42
= 1.634 moles.
Hope this helps!
Answer: the effective nuclear charge of sulfur is less than that of chlorine
Explanation:
Ionization Energy can be defined as the energy needed for the complete removal of valence electron.
Ionization Energy decreases steadily down the group because of the outer electrons becomes progressively separated from the nucleus, hence they are less tightly held.
Also, Ionization Energy increases from left to right across the period i.e formation of a cation becomes more difficult owing to increase in nuclear charge.
Therefore, the effective nuclear charge of sulfur is less than that of chlorine because Chlorine have a greater ionization energy.
Answer:
"Gustavo is having an operation in the area across his abdomen and must follow the instructions after the operation is complete."
Explanation:
As shown in the question above, Gustavo underwent a transabdominal operation, ie Gustavo underwent surgery on the abdomen. As the abdomen is a delicate and widely used region of the human body, Gustavo's doctor provided some instructions that Gustavo should follow during the postoperative period that would ensure that he had a good recovery and no further health problems. Based on this, we can conclude that the statement that best explains this scenario is "Gustavo is having an operation on the abdomen area and should follow the instructions after the operation is completed."
Answer: B
. particle size
Explanation:
Let's begin by explaining that a molecular sieve is a device, whose composition allows the absorbtion of molecules that are small enough to pass through its pores, since it is made up of small pores of a precise and uniform size.
Thus, very small molecules manage to pass through the pores of the sieve, while large ones do not.
So, based on this premise, a molecular sieve separates the substances by their size.
Hence, the correct option is B.
It's 18 (the same as the number of protons:)
