Atoms and Molecular Formulas

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Questions and Answers

What is the molecular formula for ozone?

  • O4
  • O3 (correct)
  • O
  • O2

Which of the following is NOT a component of soda based on the text?

  • Caffeine
  • Water
  • Ozone (correct)
  • Glucose

What is the molecular formula for glucose as mentioned in the text?

  • C8 H10 N4 O2
  • C6 H12 O6 (correct)
  • O3
  • H2 O

What is the charge of a cation?

<p>Positive charge (D)</p> Signup and view all the answers

How is the formula for an ionic compound like magnesium nitride written?

<p>Mg3N2 (D)</p> Signup and view all the answers

What is the purpose of a molecular formula?

<p>To determine the quantity of elements in a molecule (A)</p> Signup and view all the answers

Why is it important to add the right type and quantity of ingredients in cooking?

<p>To avoid ruining the recipe (A)</p> Signup and view all the answers

In the molecular formula O2, what does the subscript '2' represent?

<p>The quantity of atoms of each element (B)</p> Signup and view all the answers

How does changing the quantity of ingredients in cooking relate to molecules?

<p>It creates a different molecule (C)</p> Signup and view all the answers

Why are atoms compared to ingredients in cooking?

<p>Because both require precise type and quantity for desired results (D)</p> Signup and view all the answers

What is the subscript of magnesium in the formula of magnesium nitride?

<p>3 (B)</p> Signup and view all the answers

In the formula for potassium chloride, what is the subscript of the anion?

<p>1 (C)</p> Signup and view all the answers

What is the charge of the cation in potassium chloride?

<p>+1 (A)</p> Signup and view all the answers

Why is the simplified formula for potassium chloride written as KCl?

<p>To show that there are no subscripts in the compound. (A)</p> Signup and view all the answers

If the charge of an anion is -2, what would be the subscript of the corresponding cation?

<p>2 (D)</p> Signup and view all the answers

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