The average mass of one atom of carbon is 2.00 
10 -23 g.How many carbon atoms are present in a 40.0g sample of carbon?
A) 7.96 
10 -22
B) 4.98 
10 -25
C) 2.00 
10 24
D) 2.06 
10 4
Correct Answer:
Verified
Q46: A substance has 13 protons,14 neutrons,and 13
Q47: The element with atomic number 53 is
A)Iron
B)Iridium
C)Iodine
D)Indium
Q48: What is the atomic number of sodium?
A)11
B)16
C)23
D)32
Q49: What is the atomic number of magnesium?
A)12
B)24
C)25
D)55
Q50: Which contains the largest number of neutrons?
A)C-12
B)P-31
C)Br-80
D)Sr-90
Q52: The concept that most of the atom's
Q53: Models of the atom were proposed by
Q54: What is the mass number of an
Q55: Which isotope contains the same number of
Q56: Which contains the fewest neutrons?
A)H-2
B)H-3
C)He-4
D)He-5
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