Mini-Quiz: Chemical Equations

1. Why is the ( → ) symbol used instead of ( = ) in a chemical equation?

   To show the reaction goes in one directionThat is correct. You look like a Champion. To differentiate from a cookbook recipeSorry, not correct. Try another button. Because Chemists like to be differentGood try, but not right. Select another answer.

2. What is the basic rule of a chemical equation?

   The amount each atom on the right equals the number on the leftThat is right. You sure are smart in Chemistry. Similar atoms like to combine with different onesOops! Wrong answer. Re-read the question and try again. Water is needed in every equationSorry, not correct. Try another button.

3. If you put an electric current through water, you can break it into hydrogen and oxygen gases. What is the equation for this reaction?

   H2O → H2 + OGood try, but not right. Select another answer. 2H2O → 2H2 + O2That is correct. You look like a Champion. 2H2O → 2H2 + 2OOops! Wrong answer. Re-read the question and try again.

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