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Type: Multiple-Choice
Category: Physics
Level: Grade 8
Score: 1
Tags: PS1.B
Author: HTAdmin
Created: 2 years ago

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Grade 8 Physics

The chemical formula [math]Ca(NO_3)2[/math] describes a compound that contains                                                      .
  1. 1 nitrogen atom, 5 oxygen atoms, and 3 calcium atoms
  2. 1 nitrogen atom, 3 oxygen atoms, and 6 calcium atoms
  3. 2 nitrogen atoms, 6 oxygen atoms, and 1 calcium atom
  4. 2 nitrogen atoms, 6 oxygen atoms, and 2 calcium atoms
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