What is a fission reaction?
Honors Chemistry First Semester Test (2024-2025)

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Chemistry
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9th - 12th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
A fission reaction is a nuclear reaction in which the nucleus of an atom splits into smaller parts, releasing a large amount of energy.
2.
FLASHCARD QUESTION
Front
How do you calculate the number of moles in a substance?
Back
To calculate the number of moles, use the formula: Moles = Mass (g) / Molar Mass (g/mol).
3.
FLASHCARD QUESTION
Front
What happens to beryllium when it forms an ionic bond?
Back
Beryllium loses 2 electrons to achieve a stable electron configuration.
4.
FLASHCARD QUESTION
Front
Which type of element typically forms positive ions?
Back
Metals typically form positive ions by losing electrons.
5.
FLASHCARD QUESTION
Front
How do you calculate the mass of a compound from moles?
Back
Mass (g) = Moles x Molar Mass (g/mol).
6.
FLASHCARD QUESTION
Front
What is a combustion reaction?
Back
A combustion reaction is a chemical reaction that occurs when a substance combines with oxygen, releasing energy in the form of heat and light.
7.
FLASHCARD QUESTION
Front
What is the molar mass of carbon dioxide (CO2)?
Back
The molar mass of CO2 is approximately 44.01 g/mol.
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