PS.8 EOG Review 2
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What are protons?
Back
Protons are subatomic particles located in the nucleus of an atom and have a positive charge.
2.
FLASHCARD QUESTION
Front
What is a homogeneous mixture?
Back
A homogeneous mixture is a mixture that has a uniform composition throughout, such as milk.
3.
FLASHCARD QUESTION
Front
What is a pure substance?
Back
A pure substance is a material that is either an element or a compound.
4.
FLASHCARD QUESTION
Front
How do atoms behave in a gas?
Back
Atoms move quickly and randomly in a gas state.
5.
FLASHCARD QUESTION
Front
How do you balance the chemical equation 2KI + ____Cl2 → 2KCl + I2?
Back
The blank should be filled with 1 to balance the equation.
6.
FLASHCARD QUESTION
Front
What is the charge of a proton?
Back
A proton has a positive charge.
7.
FLASHCARD QUESTION
Front
What is the difference between an element and a compound?
Back
An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.
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