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- 1. Multiple Choice
The diagram above shows the repeating groups of atoms that make up two samples. Will the properties of the two samples likely be the same or different? (Examples of properties are smell, color, and the temperature at which a substance melts.)
The properties will likely be different because the repeating groups of atoms that make up each sample are different.
The properties will likely be different because there are more repeating groups of atoms in Sample 2.
The properties will likely be the same because the repeating groups of atoms that make up the two samples have the same number of atoms.
The properties will likely be the same because the repeating groups of atoms that make up the two samples have two of the same types of atoms.
- 2. Multiple Choice
Serena mixed two samples together: a gray solid that smells like flowers and a gray solid that smells like bleach. She analyzed the results and found two ending substances. One of the ending substances was a white solid. This ending substance is made up of the repeating group of atoms shown above. Which of the diagrams to the left shows the repeating groups of atoms that make up the samples Serena mixed together?
- 3. Multiple Choice
Tiana is a chemist who is making a chemical to add to swimming pools in order to make the water safer. She mixed two solid substances together in a sealed container. The diagram above shows the repeating groups of atoms that make up the two starting substances.
After mixing, Tiana found two liquid substances in the sealed container. (Nothing had escaped.) Which of the diagrams to the left shows the repeating groups of atoms that make up the ending substances?
- 4. Multiple Choice
The diagram above shows the repeating groups of atoms that make up two samples. Will the properties of the two samples likely be the same or different? (Examples of properties are smell, color, and the temperature at which a substance melts.)
The properties will likely be different because the repeating groups of atoms that make up each sample are different.
The properties will likely be different because there are more repeating groups of atoms in Sample 1.
The properties will likely be the same because the repeating groups of atoms that make up the two samples have one of the same types of atoms.
The properties will likely be the same because the repeating groups of atoms that make up the two samples have the same number of atoms.
- 5. Multiple Choice
- 6. Multiple Choice
Santiago is a chemist working to make a new kind of antacid, which is a medicine that helps with stomach pain. He mixed two powdery solid substances together in a sealed container. The diagram above shows the repeating groups of atoms that make up the two starting substances.
After mixing, Santiago found two liquid substances in the sealed container. (Nothing had escaped.) Which of the diagrams to the left shows the repeating groups of atoms that make up the ending substances?
- 7. Multiple Choice
The diagram above shows the repeating groups of atoms that make up two samples. Both samples are liquid at room temperature. Will the properties of the two samples likely be the same or different? (Examples of properties are smell, color, and the temperature at which a substance melts.)
The properties will likely be the same because the repeating groups of atoms that make up the two samples have the same types of atoms.
The properties will likely be the same because both samples are liquids at room temperature.
The properties will likely be different because the repeating groups of atoms that make up the two samples have different numbers of atoms.
The properties will likely be different because there are more repeating groups of atoms in Sample 1.
- 8. Multiple Choice
Marisol mixed two samples together: a brown liquid with no smell and a colorless gas that smells irritating. She analyzed the results and found two ending substances. One of the ending substances smelled sweet. This ending substance is made up of the repeating group of atoms shown above. Which of the diagrams to the left shows the repeating groups of atoms that make up the samples Marisol mixed together?
- 9. Multiple Choice
Jamie works at a company that makes cleaning chemicals. She is trying to make a chemical that smells like flowers. She took two samples that were gases at room temperature and mixed them in a sealed container. The diagram above shows the repeating groups of atoms that make up the two starting substances.
After mixing, Jamie found two substances that smelled like flowers in the sealed container. (Nothing had escaped.) Which of the diagrams to the left shows the repeating groups of atoms that make up the ending substances?
- 10. Multiple Choice
The diagram above shows the repeating groups of atoms that make up two samples. Both samples are green gases at room temperature. Will the other properties of the two samples be the same or different? (Examples of properties are smell, color, and the temperature at which a substance melts.)
The other properties will be the same because the repeating groups of atoms that make up the two samples are the same.
The other properties will be different because there are more repeating groups of atoms in Sample 2.
The other properties will be the same because both samples are green at room temperature.
The other properties will be the same because both samples are gases at room temperature.
- 11. Multiple Choice
A chemist mixed two samples together: a gray liquid that boils at 103°C and a colorless gas that boils at 19°C. She analyzed the results and found two ending substances. One of the ending substances was a pink liquid. This ending substance is made up of the repeating group of atoms shown above. Which of the diagrams to the left shows the repeating groups of atoms that make up the samples the chemist mixed together?
- 12. Multiple Choice
Patrik works at a company that makes paper and needs a chemical to make the paper brighter. He mixed two colorless substances together in a sealed container. The diagram above shows the repeating groups of atoms that make up the two starting substances.
After mixing, Patrik found two white substances in the sealed container. (Nothing had escaped.) Which of the diagrams to the left shows the repeating groups of atoms that make up the ending substances?
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