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What is the electron configuration of an element with atomic number 20? A. 1s2 2s2 2p6 3s2 3p5 B. 1s2 2s2 2p6 3s2 3p6 C. 1s2 2s2 2p6 3s2 D. 1s2 2s2 2p6 3s2 3p6 4s2 E. 1s2 2s2 2p6
answered
Dec 11, 2019
Chemistry
middle-school
3
votes
45.7k
views
Why would President Bush order the invasion of Panama? A. Because the United States wanted more land. B. Because the United States wanted to rid the world of communism. C. Because the United States wanted
answered
Oct 11, 2019
History
middle-school
2
votes
81.7k
views
In the diagram, SR = 4 square root 2 and OR= square room of 10. What is the perimeter of the parallelogram PQRS?
answered
Oct 2, 2019
Mathematics
high-school
5
votes
56.0k
views
The diameter of an average size penny was found to be 1.95 cm. Which digit in the diameter of the penny represents the estimated digit? A 1 B 9 C 5
answered
Jun 20, 2019
Chemistry
middle-school
7
votes
197k
views
What role does the federal reserve play check all that apply
answered
Jun 13, 2019
History
college
1
vote
9.4k
views
What do some critics see as a notable difference between the audio and text of Churchill’s speech? A. Churchill varies his speaking rate and volume to create emphasis in the audio version, but the sentence
answered
Mar 23, 2019
English
middle-school
5
votes
183k
views
Xm-2m if x=-2 and m=-3
answered
Sep 20, 2018
Mathematics
college
3
votes
163k
views
Number 15 please ...... Greatest common factor
answered
Aug 13, 2018
Mathematics
middle-school
5
votes
69.9k
views
Cohesion describes water's _____. A. attraction to other substances B. attraction to itself C. ability to dissolve most substances D. rate of cooling and heating
answered
Jul 4, 2018
Biology
high-school
3
votes
26.9k
views
How do the Jews of Judea feel about the Romans?
answered
Mar 23, 2018
Social Studies
middle-school
4
votes
154k
views
Discuss in your own words how attitudes and values effect communication
answered
Mar 15, 2018
Health
high-school
5
votes
77.9k
views
What is the most fames painting in the world
answered
May 8, 2017
Arts
high-school
2
votes
68.5k
views
M∠RPS = 90° Conclusion: m∠UPW = 90°. Which of the statements supports the conclusion from the diagram and the GIVEN information? Vertical angles are equal in measure. Perpendicular lines meet to form right
answered
Mar 16, 2017
Mathematics
high-school
6
votes
86.5k
views
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