Question 19 The diameters and masses of atoms are, respectively, on the order of

ID: 844000 • Letter: Q

Question

Question 19

The diameters and masses of atoms are, respectively, on the order of ________.

10-11 m and 10-24 g

Question 20

Which one of the following statements about heteroatomic molecules is incorrect?

Heteroatomic molecules do not maintain the properties of their constituent elements.

Question 21

Chlorine, which exists in nature in two isotopic forms, has an atomic mass of 35.5 amu. This means that ________.

35Cl constitutes 75% of full chlorine atoms, 37Cl represents 25%

Question 22

A group of college students donated 136 pints of blood to a local blood bank. How many milliliters of blood did the group of students donate?

64,300 mL

Question 23

10-23 m and 10-10 g

D 10-11 m and 10-24 g

20)Atoms in a heteroatomic molecule may be the same atom

21)35Cl constitutes 75% of full chlorine atoms, 37Cl represents 25%

22)64352mL

23)25.70 mL

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