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Hadassah Bass
Hadassah Bass answered 5/26/2011
Iodine-131 Is A Radioactive Isotope With A Half-life Of 8 Days. How Many Grams Of A 64 G Sample Of Iodine-131 Will Remain At The End Of 24 Days?
"8 g"
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Hadassah Bass
Hadassah Bass answered 5/26/2011
A Chemist Is Examining An Unidentified Element Sample With Oxidation States Of +2, +3, And +6. The Element Has A Shielding Effect Similar To That Of Potassium (K). Which Statement About The Unidentified Element Is Most Likely True?
"It is a transition metal from the same period as potassium."
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Hadassah Bass
Hadassah Bass answered 5/26/2011
In Order To Determine The Identity Of A Substance, A Student Listed The Following Properties. Which Of The Following Is A Chemical Property?
"Oxidizes in air"
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Hadassah Bass
Hadassah Bass answered 5/26/2011
What Is The Mass Of One Mole Of Carbon Dioxide, CO2?
"44 g"
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Hadassah Bass
Hadassah Bass answered 5/26/2011
Sodium Iodide Exhibits What Type Of Bond?
"Ionic"
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Hadassah Bass
Hadassah Bass answered 5/18/2011
When CuSO4 • 5H2O Is Heated In A Crucible, There Is A Loss Of Water. How Should A Student Determine The Amount Of Water Lost?
"Subtract the mass of the CuSO4 from the mass of CuSO4 • 5H2O"
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Hadassah Bass
Hadassah Bass answered 5/18/2011
Which Of These Best Describes The Difference Between The Formulas For Nitrogen Monoxide And Nitrogen Dioxide?
"Nitrogen monoxide has one fewer atom of oxygen."
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Hadassah Bass
Hadassah Bass answered 5/18/2011
Student Is Given A Container Of Potassium Nitrate Crystals. In Order To Determine The Exact Mass Of The Potassium Nitrate Using A Triple Beam Balance, He Must Know The -?
"mass of the empty container and the mass of the filled container"
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Hadassah Bass
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