What is synthesis in chemistry?
Chemistry Final Test Unit 5/6

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Science
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9th - 12th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
Synthesis is a type of chemical reaction where two or more simple substances combine to form a more complex product. Example: Na + Br₂ → NaBr.
2.
FLASHCARD QUESTION
Front
How do you balance a chemical equation?
Back
To balance a chemical equation, adjust the coefficients in front of the compounds to ensure that the number of atoms for each element is the same on both sides of the equation.
3.
FLASHCARD QUESTION
Front
What is the coefficient of O₂ in the reaction Al + O₂ → Al₂O₃?
Back
The coefficient of O₂ is 3, making the balanced equation: 4 Al + 3 O₂ → 2 Al₂O₃.
4.
FLASHCARD QUESTION
Front
How do you calculate the number of moles from grams?
Back
To calculate moles, use the formula: Moles = Mass (g) / Molar Mass (g/mol). For example, 16.94g of water (H₂O) is 0.9401 mol.
5.
FLASHCARD QUESTION
Front
What is the molar mass of C₆H₁₂O₆?
Back
The molar mass of glucose (C₆H₁₂O₆) is 180.18 g/mol.
6.
FLASHCARD QUESTION
Front
What is the product of the combustion of methane (CH₄)?
Back
The combustion of methane produces carbon dioxide (CO₂) and water (H₂O). The balanced equation is: CH₄ + 2 O₂ → CO₂ + 2 H₂O.
7.
FLASHCARD QUESTION
Front
What is a mole in chemistry?
Back
A mole is a unit that measures the amount of substance. It is defined as 6.022 x 10²³ particles (atoms, molecules, etc.).
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