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After renowned black singer Marion Anderson was denied the use of a concert hall in segregated Washington, D.C., who arranged for her to sing on the steps of the Lincoln Memorial? A. Herbert Hoover B.
answered
Sep 11, 2017
History
high-school
4
votes
103k
views
A 13.00 g sample of citric acid reacts with an excess of baking soda as shown in the equation. What is the theoretical yield of carbon dioxide?
answered
May 25, 2017
Chemistry
high-school
3
votes
105k
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