chem 103 final exam study guide questions with 100
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Chem 103 Final Exam Study Guide
An element is best described as a material
A)That has consistent chemical properties
B)Consisting of only one type of atom
C)That is pure
D)With more than one type of atom
E)That has consistent physical properties - correct answer-that has consistent chemical
properties
Carbon-14 emits a Beta particle and is transformed into:
A)Nitrogen
B)Oxygen
C)Hydrogen
D)Fluorine - correct answer-Nitrogen
How many protons are there in an Alpha particle?
A)0
B)2
C)4
D)1 - correct answer-2
How would you classify the following material?
A cappuccino with foam
A)a suspension
B)a heterogeneous mixture
C)a solution
D)an element
E)a compound - correct answer-a heterogeneous mixture
How would you classify the following material?
Swimming pool water
A)a pure compound
B)heterogeneous mixture
C)a pure element
D)homogeneous mixture
E)depends on how many children have been in it - correct answer-Homogeneous mixture
If you have two molecules of TiO2 how many oxygen atoms would you have?
A)3
B)6
C)4
D)2
E)none - correct answer-4
Ra-222 undergoes Alpha decay. Which is the new element?
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