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Nicotine, a component of tobacco, is composed of C, H, and N. A 7.875-mg sample of nicotine was combusted, producing 21.363 mg of CO2 and 6.125 mg of H2O. What is the empirical formula for nicotine?
answered
Jan 26, 2020
Chemistry
high-school
1
vote
127k
views
of the four components of the health care system, which component's goal is to make a profit while providing high quality care?
answered
Nov 30, 2019
Health
high-school
1
vote
216k
views
Roan cattle are the heterozygous hybrids of a cross between a white bull and a red cow. If a roan bull were crossed with a red cow what would be the possible phenotypes of their offspring
answered
Aug 10, 2019
Biology
college
1
vote
145k
views
Why does Lady Capulet (Juliet's mom) think Juliet should love and marry Paris? Use evidence from the text to support your answer. (Activity learn: Romeo and Juliet story)
answered
Jul 20, 2019
English
high-school
0
votes
67.9k
views
Simplify: 4w(to the power of 9)+(-2w(to the power of 9)) enter the original expression if it cannot be simplified
answered
Feb 25, 2019
Mathematics
college
7
votes
172k
views
Government _____ can make safer workplaces. exports taxes regulations
answered
Jun 9, 2018
Social Studies
high-school
2
votes
15.0k
views
A progressive disease characterized by the deterioration of the myelin sheath covering axons within the brain is known as
answered
Jan 7, 2018
Health
high-school
1
vote
146k
views
Write 12,430,000 in expanded form
answered
Sep 30, 2017
Mathematics
middle-school
5
votes
167k
views
Which of these pieces of evidence did NOT help in the development of the theory of plate tectonics? A) The outlines of the different continents look like they could fit together like puzzle pieces. Eliminate
answered
Aug 25, 2017
Biology
high-school
1
vote
226k
views
What term refers to the deliberate and systematic mass slaughter of Europe's Jews and others by the Nazis during World War II?
answered
Jul 26, 2017
History
high-school
3
votes
49.6k
views
Pyramids were created as a monument in ancient Egypt. What other civilizations built similar monuments? a. Olmec civilization b. Harappan civilization c. Chavin civilization d. Shang dynasty
answered
Oct 27, 2016
History
high-school
1
vote
91.0k
views
3x-7y=17 when x=-3,0,3
answered
Jul 29, 2015
Mathematics
middle-school
7
votes
30.9k
views
20 cups equal how many quarts
answered
Jun 16, 2015
Mathematics
middle-school
0
votes
194k
views
Solve 4x^5-52x^3+120x=12x^4-36x^2
answered
Apr 30, 2015
Mathematics
high-school
2
votes
72.4k
views
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