CI Review (Physical Science)
Flashcard
•
Science
•
8th Grade
•
Hard
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the atomic structure of a neutral atom?
Back
A neutral atom has an equal number of protons and electrons, resulting in no overall charge. The number of neutrons can vary, contributing to different isotopes.
2.
FLASHCARD QUESTION
Front
How do you determine the number of neutrons in an atom?
Back
The number of neutrons can be found by subtracting the atomic number (number of protons) from the mass number (total number of protons and neutrons).
3.
FLASHCARD QUESTION
Front
What is a chemical reaction?
Back
A chemical reaction is a process that involves the transformation of substances through the breaking and forming of chemical bonds, resulting in new substances.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
4.
FLASHCARD QUESTION
Front
What is the law of conservation of mass?
Back
The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.
Tags
NGSS.MS-PS1-5
5.
FLASHCARD QUESTION
Front
What is a compound?
Back
A compound is a substance formed when two or more elements are chemically bonded together in a fixed ratio.
Tags
NGSS.MS-PS1-1
6.
FLASHCARD QUESTION
Front
What is the difference between a physical change and a chemical change?
Back
A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.
7.
FLASHCARD QUESTION
Front
What is an open system in a chemical reaction?
Back
An open system is one where matter can enter or leave the system, allowing for the exchange of substances with the surroundings.
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