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August 27, 2014

Posts by Alison


Total # Posts: 303

Social Studies
Why is it difficult to travel on many African rivers?
October 16, 2007

Chemistry
Write the formulas of the ions (including charges) present in aqueous solutions of the following: K2CO3 NH4NO3 NA2Cr2O7 Mg(C2H3O2)2 Make sure it is both mass and charge balanced. Here is a listing of many polyatomic ions. This should give you a start. Post with specific ...
April 4, 2007

math - 6th grade
how do you do front end estimation when the number of digits are different....like 12,249 - 6,875 dgud wat are the poperties of math and what do they all mean????????? i need help in my homework I haven't used the expression "front end" estimation but I would ...
September 25, 2006

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