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- 1. Multiple Choice
Practice question: Choose the question that says "pick me"
Don't pick me
Definitely not this one
Pick me!
Whoa! Way to read ALL of the questions! You are a quiz super star! Self-high-five!
- 2. Multiple Choice
What does "rearrange" mean?
To make sure to read all of the answers on the quiz
To not add or take away but to move things around. To remix
To not just choose the longest answer because sometimes teachers put in long answers to make sure you are paying attention.
To not pick the shortest answer
- 3. Multiple Choice
The diagram above shows the repeating groups of atoms that make up two samples. Both samples are red powdery solids 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 different because there are more repeating groups of atoms in Sample 1.
The other properties will be the same because both samples are red at room temperature.
The other properties will be the same because both samples are powdery solids at room temperature.
The other properties will be same because the repeating groups of atoms that make up the two samples are the same.
- 4. Multiple Choice
Can one substance change into another substance? (read carefully)
No, because things can mix, but they can't change into new things
Yes, because new atoms can be created
No, because atoms can not be destroyed
Yes, because atoms can be rearranged.
- 5. Multiple Choice
What is an example of a substance?
table salt (NaCl)
Teddy Bear
Mechanical pencil
A person
- 6. Multiple Choice
The diagram above shows the repeating groups of atoms that make up two samples. Both samples are solids at room temperature. Will the other 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 other properties will likely be different because there are more repeating groups of atoms in Sample 2.
The other properties will likely be different because the repeating groups of atoms that make up the two samples have different numbers of atoms.
The other 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 other properties will likely be the same because both samples are solids at room temperature.
- 7. Multiple Choice
Which is NOT a substance?
Water (H2O)
Diamond (C)
Hydrogen peroxide (H2O2)
Chicken nuggets (Nug1T)
- 8. Multiple Choice
Andres is a chemist working at a company that makes ink. To make a new kind of ink, Andres mixed two liquid substances together in a sealed container. The diagram above shows the repeating groups of atoms that make up the two starting substances.
After mixing, Andres found two solid 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?
- 9. Multiple Choice
What is a reactant?
Something that actanats again
A starting substance before a chemical reaction
A potato
What happens when you have the reflexes of a ninja and can react quickly.
- 10. Multiple Choice
Samira watched a demonstration in which a scientist combined two substances in a sealed container and analyzed the results. The ending substances did not look the same as the starting substances.
Samira was given a diagram with the repeating groups of atoms that make up the starting substances, plus information about the properties of the starting and ending substances. She created a model of the repeating groups of atoms that might make up the two ending substances.
Samira's model correctly demonstrates how the properties changed with the rearrangement of the atoms. However not all atoms are accounted for. There is a missing reactant.
Samira's model is correct because the properties are different and the atoms are rearranged.
Samira's model is incorrect because not all atoms are accounted for
Samira's model correctly demonstrates how the properties changed with the rearrangement of the atoms. However not all atoms are accounted for. There is a missing product.
- 11. Multiple Choice
What is a product (in chemical reactions)?
Something a company will try to sell to you
Also a potato
When the mitosis space-time folds into a tetrahedron flux-capacitor
The substance(s) that are created after a chemical reaction
- 12. Multiple Choice
The diagram above shows the repeating groups of atoms that make up two samples. Both samples are gases at room temperature. Will the other properties of the samples likely be the same or different? (Examples of properties are smell, color, and the temperature at which a substance melts.)
The other 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 other properties will likely be the same because both samples are gases at room temperature.
The other properties will likely be different because there are more repeating groups of atoms in Sample 1.
The other properties will likely be different because the repeating groups of atoms that make up the two samples have different numbers of atoms.
- 13. Multiple Choice
What is an atom?
Water is an atom
The Hydrogen (H)s and the Oxygen (O)s are atoms
The H2O is an atom
None of these are atoms
- 14. Multiple Choice
A chemist mixed two samples together: a brown solid that melts at about 1,300°C and a colorless liquid that melts at about 20°C. She analyzed the results and found two ending substances. One of the ending substances melts at about 250°C. 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?
- 15. Multiple Choice
What is a molecule?
The H2O is a molecule
The Hydrogen (H)s and the Oxygen (O)s are molecules
The H2O is an atom
None of these are molecules
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