How many atoms of sodium are indicated in the formula Na2SO4?
A) 1
B) 2
C) 3
D) 4
Correct Answer:
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Q32: How many different elements are present in
Q33: How many different elements are present in
Q34: What is the total number of hydrogen
Q35: What is the total number of atoms
Q36: How many atoms of hydrogen are present
Q38: What is the total number of atoms
Q39: Which element forms diatomic molecules?
A)Nitrogen
B)Nickel
C)Boron
D)Iron
Q40: Which element forms diatomic molecules?
A)Sulfur
B)Neon
C)Calcium
D)Chlorine
Q41: Which of the following formulas contains the
Q42: The smallest uncharged individual unit of a
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