[amp_mcq option1=”nitrogen peroxide” option2=”water” option3=”chlorine” option4=”ammonia” correct=”option3″]<\/p>\n
The correct answer is C. Chlorine is an element, not a compound.<\/p>\n
A compound is a substance that is made up of two or more elements that are chemically combined. The elements in a compound are held together by chemical bonds. Chemical bonds are the forces that hold atoms together in molecules.<\/p>\n
Nitrogen peroxide (N2O4) is a compound that is made up of two elements: nitrogen and oxygen. Water (H2O) is a compound that is made up of two elements: hydrogen and oxygen. Ammonia (NH3) is a compound that is made up of three elements: nitrogen and hydrogen.<\/p>\n
Chlorine (Cl2) is an element. It is a yellow-green gas that is very poisonous. It is used to make bleach and other chemicals.<\/p>\n
Here is a table that summarizes the information above:<\/p>\n
| Option | Description |
\n|—|—|
\n| A. Nitrogen peroxide (N2O4) | A compound that is made up of two elements: nitrogen and oxygen. |
\n| B. Water (H2O) | A compound that is made up of two elements: hydrogen and oxygen. |
\n| C. Chlorine (Cl2) | An element. It is a yellow-green gas that is very poisonous. It is used to make bleach and other chemicals. |
\n| D. Ammonia (NH3) | A compound that is made up of three elements: nitrogen and hydrogen. |<\/p>\n","protected":false},"excerpt":{"rendered":"
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