Final Exam Practice
Flashcard
•
Chemistry
•
8th - 10th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What element is located in Group 18 & Period 5?
Back
Xenon is located in Group 18 and Period 5 of the periodic table.
2.
FLASHCARD QUESTION
Front
How many atoms of carbon are in 2C2H6?
Back
There are 4 atoms of carbon in 2C2H6.
3.
FLASHCARD QUESTION
Front
What Group is Magnesium in?
Back
Magnesium is in Group 2 of the periodic table.
4.
FLASHCARD QUESTION
Front
How many atoms are there TOTAL in H2SO4?
Back
There are 7 total atoms in H2SO4.
5.
FLASHCARD QUESTION
Front
What is the atomic number for Antimony?
Back
The atomic number for Antimony is 51.
6.
FLASHCARD QUESTION
Front
What is the definition of a chemical element?
Back
A chemical element is a pure substance that cannot be broken down into simpler substances by chemical means.
7.
FLASHCARD QUESTION
Front
What is the significance of the atomic number?
Back
The atomic number represents the number of protons in the nucleus of an atom and determines the element's identity.
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