What is the electron configuration of hydrogen?
Chemistry Semester Exam

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Chemistry
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
1s¹
2.
FLASHCARD QUESTION
Front
How many grams are in 5.6 moles of H2O?
Back
The answer is 100.8 grams (5.6 moles x 18.02 g/mol).
3.
FLASHCARD QUESTION
Front
What is the mass in grams of 5.90 mol C8H18?
Back
The mass is 674.13 g.
4.
FLASHCARD QUESTION
Front
What is the dot diagram of oxygen (O)?
Back
Oxygen has 6 valence electrons, represented as :O:.
5.
FLASHCARD QUESTION
Front
What is the name of SnO2?
Back
Tin (IV) Oxide.
6.
FLASHCARD QUESTION
Front
What is the molar mass of water (H2O)?
Back
The molar mass is 18.02 g/mol.
7.
FLASHCARD QUESTION
Front
What is the definition of a mole in chemistry?
Back
A mole is a unit that measures the amount of substance, defined as 6.022 x 10²³ particles.
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