Determine the number of atoms in a piece of silicon that has a mass of 15.0 grams. O 1.13 x 1024 atoms O 1.69 x 1025 atoms O 2.54 x 1020 atoms O 3.21 x 10-3 atoms O 9.03 x 1024 atoms
Determine the number of atoms in a piece of silicon that has a mass of 15.0 grams. O 1.13 x 1024 atoms O 1.69 x 1025 atoms O 2.54 x 1020 atoms O 3.21 x 10-3 atoms O 9.03 x 1024 atoms
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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![Question 27
Determine the number of atoms in a piece of silicon that has a mass of 15.0 grams.
O 1.13 x 1044 atoms
1.69 x 10 atoms
O 2.54 x 1020
atoms
O 3.21 x 103 atoms
O 9.03 x 1024
atoms
Question 28
Which of these is the correct name for MgCl2?
O Magnesium chloride
O Magnesium chlorine
O Magnesium dichloride
Magnesium monochloride
O Monomagnesium monochloride
Question 29
How many grams of carbon dioxide are produced when 18.5 moles of oxygen react with excess acetylene according to the given equation?
2 C2H2 + 5 O2(g)4 CO2+ 2 H20
O 2,030 grams
O 814 grams
O 651.2 grams
88.0 grams
O 37.0 grams](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F80366bbd-a758-40e7-b9ec-8d2e3445db54%2Fa39e9503-12af-4a1c-9134-c948b7a38589%2F2dwnswp_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Question 27
Determine the number of atoms in a piece of silicon that has a mass of 15.0 grams.
O 1.13 x 1044 atoms
1.69 x 10 atoms
O 2.54 x 1020
atoms
O 3.21 x 103 atoms
O 9.03 x 1024
atoms
Question 28
Which of these is the correct name for MgCl2?
O Magnesium chloride
O Magnesium chlorine
O Magnesium dichloride
Magnesium monochloride
O Monomagnesium monochloride
Question 29
How many grams of carbon dioxide are produced when 18.5 moles of oxygen react with excess acetylene according to the given equation?
2 C2H2 + 5 O2(g)4 CO2+ 2 H20
O 2,030 grams
O 814 grams
O 651.2 grams
88.0 grams
O 37.0 grams
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