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Exam (elaborations)

CHEMISTRY 141 EXAM 1 QUESTIONS WITH CORRECT ANSWERS

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CHEMISTRY 141 EXAM 1 QUESTIONS WITH CORRECT ANSWERS

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Guidelines for Writing Binary Formulas


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1)The elements on the left in the periodic table appear first 2)If both
elements are from the same group the one from the lower row
appears first

,Dynamic Equilibrium


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Particles are constantly moving back and forth at the same rate so it
keeps equilibrium




milli


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10⁻³




Mass Number


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The mass of an atom (protons + neutrons)




Polyatomic anion with a charge >-1


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Can add a hydrogen cation, add hydrogen to the front of the name of
the ion ex: HCO₃⁻ = hydrogen carbonate

, Carbon


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Element of life




Molecule


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A unit of matter that is composed of two or more atoms




Freezing


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Conversion of liquid to solid




Beta decay


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Emission of an electron, neutron breaks up into electron and proton
(⁰⁻₁β)

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