
Regular EL 4 Chemical Reactions Review
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
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15 questions
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1.
FLASHCARD QUESTION
Front
What type of bond usually forms between a metal and a nonmetal?
Back
Ionic bond.
2.
FLASHCARD QUESTION
Front
What type of bond usually forms between two nonmetals?
Back
Covalent bond.
3.
FLASHCARD QUESTION
Front
What is formed when two atoms share electrons?
Back
Covalent bond.
4.
FLASHCARD QUESTION
Front
What type of change occurs when water evaporates from an evaporating dish left under the sun?
Back
Physical change.
5.
FLASHCARD QUESTION
Front
How many oxygen atoms are present in the molecule (OH)₂?
Back
2 oxygen atoms.
6.
FLASHCARD QUESTION
Front
What is the definition of an ionic bond?
Back
An ionic bond is a type of chemical bond that occurs when electrons are transferred from one atom to another, typically between a metal and a nonmetal.
7.
FLASHCARD QUESTION
Front
What is the definition of a covalent bond?
Back
A covalent bond is a type of chemical bond that involves the sharing of electron pairs between atoms, usually between nonmetals.
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