
Stoichiometry review
Flashcard
•
Chemistry
•
12th Grade
•
Practice Problem
•
Medium
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15 questions
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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 the mole ratio in a chemical reaction?
Back
The mole ratio is the ratio of the coefficients of the reactants and products in a balanced chemical equation, which indicates the proportion in which substances react and are produced.
3.
FLASHCARD QUESTION
Front
How do you calculate the number of moles from grams?
Back
To calculate the number of moles from grams, use the formula: moles = mass (g) / molar mass (g/mol).
4.
FLASHCARD QUESTION
Front
What is the balanced equation for the decomposition of potassium chlorate (KClO3)?
Back
2 KClO3 → 2 KCl + 3 O2.
5.
FLASHCARD QUESTION
Front
How many moles of oxygen are produced from the decomposition of 6.7 moles of KClO3?
Back
10.1 moles of oxygen are produced.
6.
FLASHCARD QUESTION
Front
What is the balanced equation for the reaction of sodium with water?
Back
2 Na + 2 H2O → 2 NaOH + H2.
7.
FLASHCARD QUESTION
Front
How do you convert moles of a substance to grams?
Back
To convert moles to grams, use the formula: mass (g) = moles × molar mass (g/mol).
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