
The REAL 8th grade science final
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What determines the energy of an electron in an atom?
Back
The energy of an electron varies depending on the energy level that the electron occupies.
2.
FLASHCARD QUESTION
Front
What subatomic particles are found in the electron cloud?
Back
Electrons are the subatomic particles found in the electron cloud.
3.
FLASHCARD QUESTION
Front
What does the law of conservation of mass state about chemical reactions?
Back
According to the law of conservation of mass, the mass of the products in a chemical reaction is always equal to the mass of the reactants.
4.
FLASHCARD QUESTION
Front
What type of reaction is represented by the equation: Mg + Al2O3 -> Al + MgO?
Back
This is a Single Replacement reaction.
5.
FLASHCARD QUESTION
Front
Do atoms of different elements have the same number of protons?
Back
No, atoms of different elements have different numbers of protons.
6.
FLASHCARD QUESTION
Front
What is an atom?
Back
An atom is the smallest unit of matter that retains the properties of an element.
7.
FLASHCARD QUESTION
Front
What are protons and where are they located?
Back
Protons are positively charged subatomic particles located in the nucleus of an atom.
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