Stoichiometry REVIEW!

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Science
•
10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is Stoichiometry?
Back
Stoichiometry is the branch of chemistry that deals with the calculation of reactants and products in chemical reactions based on the conservation of mass.
2.
FLASHCARD QUESTION
Front
What is a balanced chemical equation?
Back
A balanced chemical equation has equal numbers of each type of atom on both sides of the equation, reflecting the law of conservation of mass.
3.
FLASHCARD QUESTION
Front
What is the mole ratio in a chemical reaction?
Back
The mole ratio is the ratio of moles of one substance to the moles of another substance in a balanced chemical equation.
4.
FLASHCARD QUESTION
Front
How do you convert grams to moles?
Back
To convert grams to moles, divide the mass of the substance (in grams) by its molar mass (in g/mol).
5.
FLASHCARD QUESTION
Front
What is the molar mass of Al (Aluminum)?
Back
The molar mass of Aluminum (Al) is approximately 26.98 g/mol.
6.
FLASHCARD QUESTION
Front
Using the equation SiO2 + 3C → SiC + 2CO, how many moles of CO are produced from 3 moles of C?
Back
2 moles of CO are produced from 3 moles of C.
7.
FLASHCARD QUESTION
Front
In the reaction 2 Al2O3 → 4 Al + 3 O2, what is the mole ratio of Al to O2?
Back
The mole ratio of Al to O2 is 4:3.
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