
Chemistry EOC Review
Authored by Kendra Quintanilla
Chemistry
10th - 12th Grade
NGSS covered
Used 78+ times

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30 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which of the following isotopes has 18 neutrons?
40Ar
35Cl
18F
24Mg
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the correct name of Pb(CO3)2?
Lead carbonate
Lead (II) carbonate
Lead (IV) carbonate
Lead dicarbonate
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the most likely result of nitrogen and chlorine reacting based on their dot diagrams?
Three chlorine atoms will each steal one electron from nitrogen
Five chlorine atoms will each steal one electron from nitrogen
Three chlorine atoms will each share one electron with nitrogen
Five chlorine atoms will each share one electron from nitrogen
Tags
NGSS.HS-PS1-2
NGSS.HS-PS1-1
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
N2 + 3 H2 -> 2 NH3
Which of the following mole ratios is incorrect based on the balanced equation above?
2 mol NH3
3 mol H2
1 mol N2
3 mol H2
2 mol N2
6 mol H2
2 mol NH3
4 mol N2
Tags
NGSS.HS-PS1-7
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
As the number of protons increases across a period, while electrons are added to the same energy level, all of the following are true EXCEPT:
the effective nuclear charge increases
the electron shielding increases
the atomic radius decreases
the ionization energy increases
Tags
NGSS.HS-PS1-2
NGSS.HS-PS1-1
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Based on the reaction coordinate diagram, it can be concluded that:
The reaction happens quickly
The energy of the products is greater than the reactants
The reaction is exothermic
Energy is released when bonds are broken
Tags
NGSS.HS-PS1-4
NGSS.HS-PS3-1
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which letter is described incorrectly?
Letter A – The activation energy for the reaction
Letter B – The change in enthalpy (ΔH) for the reaction
Letter C – The energy required to break reactant bonds
Letter E – The energy released when product bonds form
Tags
NGSS.HS-PS1-4
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