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August 27, 2014

Posts by Alison


Total # Posts: 302

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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