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- 1. Multiple Choice
When is an ionic bond formed?
when electrons are shared
when protons are shared
when oppositely charged atoms gain or lose electrons
when oppositely charged atoms gain or lose a proton
- 2. Multiple Choice
What are the smallest basic units of matter?
molecules
atoms
elements
7th graders
- 3. Multiple Choice
Atoms that share electrons are
in a covalent bond
in an ionic bond
are usually salts
always metals
- 4. Multiple Choice
What particle is found in the nucleus and has no charge?electronneutronprotonatom - 5. Multiple Choice
What is an example of an element?
Carbon
Oxygen
Water
Salt
- 6. Fill in the Blank
Element, compound, or mixture?
- 7. Multiple Choice
How many electrons are in a full outer shell?
8
6
7
5
- 8. Multiple Choice
Which statement best describes a mixture?
Contains 1 type of atom that is not chemically bonded to any other atoms.
Contains 2 or more types of atoms that are chemically bonded together.
Contains 2 or more types of atoms that are not chemically bonded together.
Contains at least 3 types of atoms that are not chemically bonded together.
- 9. Multiple Choice
What is the difference between a molecule and a compound?
Molecules are larger than compounds
Molecule is more generic and can include elements in which two or more of the same atom are chemically bonded
Compounds always contain carbon and hydrogen whereas molecules can contain other elements
Compounds contain chemical bonds whereas molecules do not have any chemical bonds
- 10. Multiple Choice
What is a bond?
Permanent link
Linking atoms to existing compounds
Only formed between atoms
A lasting attraction
- 11. Fill in the Blank
What is the molecule called that contains only carbon and hydrogen?
- 12. Multiple Choice
What functional group is this?
Hydroxyl
Carboxyl
Amino
Methyl
- 13. Multiple Choice
What functional group is shown?
Amino
Carboxyl
Phosphate
Hydroxyl
- 14. Multiple Choice
What functional group is shown?
Carboxyl
Amino
Hydroxyl
Sulfhydryl
- 15. Multiple Choice
What functional group is shown?
Amino
Phosphate
Sulfhydryl
Hydroxyl
- 16. Multiple Choice
What functional group is shown?
Phosphate
Amino
Carboxyl
Sulfhydryl
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