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The following list contains some common polyatomic ions. Using the charge on these ions and the idea of valence, predict the formulas for the following. nitrate NO3 - phosphate PO4³- sulfate SO4²- acetate
answered
Jan 1, 2019
Chemistry
high-school
3
votes
182k
views
What is the pythagorean theorem used for?
answered
Dec 13, 2018
Mathematics
high-school
4
votes
33.8k
views
You are outside on a clear night. You see the moon, but the face of the moon is all dark; no reflected light seen. This is most likely a _________ moon.
answered
Aug 13, 2018
Chemistry
middle-school
1
vote
68.9k
views
Which US region historically has been dependent on the entertainment, software, and aerospace industries as part of its economy?
answered
Jul 4, 2018
History
high-school
2
votes
41.7k
views
According to Aristotle, tragedy and comedy are forms of _____. epic poetry poetry music dithyrambic poetry
answered
May 18, 2018
English
high-school
1
vote
101k
views
Arrange 31/40, 78%, 0.7 in ascending order
answered
Apr 26, 2018
Mathematics
high-school
1
vote
124k
views
What is the GCF of the following terms: x^2 , -35x
answered
Dec 29, 2017
Mathematics
high-school
7
votes
35.3k
views
Which of the following topic is too broad for a 10 minutes speech ?
answered
Dec 5, 2017
English
high-school
3
votes
34.0k
views
Which type of government would socrates have most likely supported? a) a military dictatorship like that of Sparta b) a representative democracy like the one established by Pericles c) a monarchy ruled
answered
Oct 28, 2017
History
high-school
4
votes
191k
views
An airplane has begun its descent for a landing. When the airplane is 150 miles west of its destination, its altitude is 25,000 feet. When the airplane is 90 miles west of its destination, its altitude
answered
Sep 3, 2017
Mathematics
middle-school
3
votes
183k
views
Who sets the salary of the president?
answered
May 27, 2017
English
high-school
2
votes
166k
views
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