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For each substance below, decide if it is an atom or a molecule.

Column A
1. F2:

2. Ca:

3. C2H6:

4. I:

5. Al:

6. H2SO4:

Choice: atom or molecule

choose the correct answer

1 answer

Here are the classifications for each substance in Column A:

  1. F2: Molecule (it's a diatomic molecule made of two fluorine atoms)
  2. Ca: Atom (calcium is a single element)
  3. C2H6: Molecule (it's an organic molecule made of two carbon atoms and six hydrogen atoms)
  4. I: Atom (iodine can exist as a single atom, although it is often found as I2, it can also be represented as a single atom in certain contexts)
  5. Al: Atom (aluminum is a single element)
  6. H2SO4: Molecule (it's a compound made of two hydrogen atoms, one sulfur atom, and four oxygen atoms)

So the choices are:

  1. Molecule
  2. Atom
  3. Molecule
  4. Atom
  5. Atom
  6. Molecule