
Chemistry Basics
Flashcard
•
Chemistry
•
9th - 12th Grade
•
Easy
Alicia Perry-Rosa
Used 1+ times
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10 questions
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1.
FLASHCARD QUESTION
Front
Anion
Back
A negatively charged ion, formed when an atom gains one or more electrons. Example: Chloride ions (Cl-) are anions found.
2.
FLASHCARD QUESTION
Front
Cation
Back
A positively charged ion, formed when an atom loses one or more electrons.
Example sentence: Sodium ions (Na+) are cations found in table salt.
3.
FLASHCARD QUESTION
Front
Covalent bond
Back
A type of chemical bond where two atoms share electrons.
Example sentence: The water molecule (H2O) is held together by covalent bonds between hydrogen and oxygen atoms.
4.
FLASHCARD QUESTION
Front
Chemical Reaction
Back
A process that involves the rearrangement of atoms and molecules, resulting in the formation of new substances.
Example sentence: Burning wood is a chemical reaction that releases heat and light.
5.
FLASHCARD QUESTION
Front
Excess reagent
Back
A reactant that is present in a larger amount than needed for a complete reaction.
Example Sentence: If you have more baking soda than vinegar, the baking soda is the excess reagent.
6.
FLASHCARD QUESTION
Front
Hydrate
Back
A compound that contains water molecules within its structure. Example Sentence: Copper sulfate pentahydrate (CuSO4·5H2O) is a hydrate that contains five water molecules per copper sulfate molecule.
7.
FLASHCARD QUESTION
Front
Ionic bond
Back
A type of chemical bond formed by the electrostatic attraction between oppositely charged ions.
Example sentence: Table salt (NaCl) is held together by ionic bonds between sodium cations (Na+) and chloride anions (Cl-).
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