
Chemistry Review
Authored by Charles Martinez
Chemistry
9th - 10th Grade
NGSS covered

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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which diagram shows diffusion?
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The electronic structures of atoms P and Q are shown.
P and Q react to form an ionic compound.
What is the formula of this compound?
Tags
NGSS.HS-PS1-2
NGSS.HS-PS1-1
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
An element Y has the proton number 18. The next element in the Periodic Table is an element Z.
Which statement is correct?
Tags
NGSS.HS-PS1-1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which atom has twice as many neutrons as protons?
Tags
NGSS.HS-PS1-8
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which is a simple covalent molecule?
when solid and when molten, not volatile
when solid but not when molten, is volatile
when molten but not when solid, not volatile
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The equation for the reaction between magnesium and dilute sulfuric acid is shown.
Mg + H2SO4 → MgSO4 + H2
Mr of MgSO4 is 120. Which mass of magnesium sulfate will be formed if 12 g of magnesium are reacted with sulfuric acid?
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The equation for the burning of hydrogen in oxygen is shown. 2H2(g) + O2(g) → 2H2O(g) What does this equation indicate?
Tags
NGSS.HS-PS1-7
NGSS.HS-PS1-2
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