Chem 132: Calculate the number of atoms in 4.77 g of lead.

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Question:

Calculate the number of atoms in 4.77 g of lead. Provide your answer using the correct amount of significant figures.
a.   7.22 x 10^-23 atoms of lead
b.  1.39 x 10^22 atoms of lead.
c.   1.386 x 10^22 atoms of lead.
d.  2.61 x 10^25 atoms of lead.
e.  2.615 x 10^25 atoms of lead.

Answer

b. 1.39 x 10^22 atoms of lead

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If atom X forms a diatomic molecule with itself, the bond is

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Question:

If atom X forms a diatomic molecule with itself, the bond is

Select one:
a.  polar coordinate covalent
b.  ionic
c.   nonpolar covalent
d.  none of these
e.  polar covalent

Answer

c. nonpolar covalent

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Write a 700-1000 word proposal that discusses the research-based benefits of using EMR technology.Your manager has asked you to help prepare a response to the COO’s assertion that electronic medical records (EMR) technology is not critical for the health care organization.

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Write a 700-1000 word proposal that discusses the research-based benefits of using EMR technology.Your manager has asked you to help prepare a response to the COO’s assertion that electronic medical records (EMR) technology is not critical for the health care organization. Resource: Sample Proposal Your manager has asked you to help prepare a response to […]

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Chem 132: How many significant figures are in the number 4.00700 × 1013?

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Question:

How many significant figures are in the number 4.00700 × 1013?

a. none of these
b. 5
c. 6
d. 2
e. 4

Answer

C. 6

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