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Why is isopropyl alcohol a better mobile phase than h2o for permanent markers?
answered
Dec 7, 2019
Biology
high-school
4
votes
208k
views
12k + 1 = 8k - 2 What is the value of k?
answered
Apr 24, 2019
Mathematics
middle-school
5
votes
80.0k
views
How many terms are in the simplest form of the product? 2(y – z)(r – s) A. 2 B. 4 C. 8 D. 1
answered
Oct 9, 2018
Mathematics
high-school
6
votes
233k
views
Sir Arthur Conan Doyle's "The Contest" is a piece of historical fiction because it focuses on the historical figure of Nero and recreates ancient Rome and Greece. In the story, Doyle indicates that the
answered
Aug 21, 2018
English
high-school
4
votes
145k
views
Which of these planetary bodies was studied by Voyager 1? A.Mars B.Jupiter C.Mercury D.Pluto
answered
Mar 3, 2018
Physics
middle-school
0
votes
148k
views
Poor Richard's aphorisms often succeed because of their implied metaphors, or metaphors that do not state explicitly the two things being compared. In aphorism 18, "If your head is wax, don’t walk in the
answered
Dec 9, 2017
English
high-school
5
votes
77.9k
views
Who developed the polio vaccine? George Marshall Jonas Salk Marie Curie Carlos Finlay
answered
Nov 27, 2017
Chemistry
high-school
4
votes
222k
views
Why are proteins so essential to cells?
answered
Nov 26, 2017
Biology
middle-school
3
votes
85.1k
views
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