Chemistry Semester 1 Review

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•
Chemistry
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the definition of matter?
Back
Matter is anything that has mass and takes up space.
2.
FLASHCARD QUESTION
Front
What are the three states of matter?
Back
Solid, liquid, and gas.
3.
FLASHCARD QUESTION
Front
What is the periodic table?
Back
A tabular arrangement of elements organized by increasing atomic number, showing periodic trends.
4.
FLASHCARD QUESTION
Front
What are valence electrons?
Back
Electrons in the outermost shell of an atom that determine its chemical properties.
5.
FLASHCARD QUESTION
Front
How do you convert a number to scientific notation?
Back
Move the decimal point to create a number between 1 and 10, then multiply by 10 raised to the power of the number of places moved.
6.
FLASHCARD QUESTION
Front
What is the formula for calculating pressure using the ideal gas law?
Back
PV = nRT, where P is pressure, V is volume, n is number of moles, R is the gas constant, and T is temperature in Kelvin.
7.
FLASHCARD QUESTION
Front
What is an isotope?
Back
Atoms of the same element that have the same number of protons but different numbers of neutrons.
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