09. Balancing Equations

Flashcard
•
Chemistry
•
10th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a balanced chemical equation?
Back
A balanced chemical equation has the same number of each type of atom on both sides of the equation, indicating that mass is conserved during the reaction.
2.
FLASHCARD QUESTION
Front
How do you determine the number of atoms in a compound?
Back
To find the total number of atoms in a compound, add the subscripts of each element in the chemical formula.
3.
FLASHCARD QUESTION
Front
What is the law of conservation of mass?
Back
The law of conservation of mass states that mass cannot be created or destroyed in a chemical reaction; it can only change forms.
4.
FLASHCARD QUESTION
Front
What is a coefficient in a chemical equation?
Back
A coefficient is a number placed in front of a chemical formula in an equation to indicate how many molecules or moles of that substance are involved in the reaction.
5.
FLASHCARD QUESTION
Front
What type of reaction is represented by the equation: 2 H₂ + O₂ → 2 H₂O?
Back
This is a combination reaction, where two or more reactants combine to form a single product.
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 light or heat.
7.
FLASHCARD QUESTION
Front
What is a decomposition reaction?
Back
A decomposition reaction is a type of chemical reaction where a single compound breaks down into two or more simpler products.
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