Hadassah Bass on Blurtit

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"

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."

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"

Hadassah Bass answered 5/26/2011

What Is The Mass Of One Mole Of Carbon Dioxide, CO2?

"44 g"

Hadassah Bass answered 5/26/2011

Sodium Iodide Exhibits What Type Of Bond?

"Ionic"

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"

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."

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"

Hadassah Bass