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Molecules and Compounds Questions - All Grades

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Grade 8 Molecules and Compounds
Hydrogen is a diatomic element. It is written as which formula?
  1. [math]H[/math]
  2. [math]He_2[/math]
  3. [math]H_2[/math]
  4. [math]He[/math]
Grade 7 Molecules and Compounds
A combination of two or more atoms.
  1. volume
  2. molecule
  3. chemical bond
Grade 6 Molecules and Compounds
Grade 6 Molecules and Compounds
When two or more elements join together, they create
  1. atoms
  2. electrons
  3. protons
  4. molecules
Grade 6 Molecules and Compounds
What does [math]C_2O_5[/math] mean?
  1. 2 carbon atoms and 5 oxygen atoms
  2. 3 carbon atoms and no oxygen atoms
  3. 4 carbon atoms and no oxygen atoms
  4. 5 carbon atoms and 2 oxygen atoms
Grade 6 Molecules and Compounds
Grade 6 Molecules and Compounds
Which of the following statements is true?
  1. Atoms are made of molecules.
  2. Atoms contain more than one element.
  3. Some atoms do not have protons.
  4. Atoms can join to form molecules.
Grade 6 Molecules and Compounds
Grade 7 Molecules and Compounds
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