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Questions and Answers
What is the main idea of the Law of Conservation of Mass?
What is the main idea of the Law of Conservation of Mass?
- Mass is conserved in chemical reactions; it is neither created nor destroyed (correct)
- The total mass of reactants and products in a chemical reaction varies over time
- Mass is created and destroyed in chemical reactions
- The mass of any one element at the beginning of a reaction will not equal the mass of that element at the end
What did Joseph Louis Proust propose with the Law of Definite Proportions?
What did Joseph Louis Proust propose with the Law of Definite Proportions?
- The masses of elements in a compound can occur in different proportions
- The masses of elements in a compound are not related to chemical reactions
- The masses of elements in a compound will change over time
- The masses of elements in a compound always occur in the same proportion (correct)
What did Antoine Lavoisier's 1789 discovery contribute to modern chemistry?
What did Antoine Lavoisier's 1789 discovery contribute to modern chemistry?
- It revolutionized science by proposing new laws of chemical combination
- It introduced the concept of creating and destroying mass in chemical reactions
- It laid the groundwork for modern chemistry and revolutionized science (correct)
- It proposed that the mass of an element at the beginning of a reaction is different from the mass at the end
What do the Laws of Chemical Combination state?
What do the Laws of Chemical Combination state?
According to the Law of Conservation of Mass, what happens to the mass in chemical reactions?
According to the Law of Conservation of Mass, what happens to the mass in chemical reactions?
What did Antoine Lavoisier's 1789 discovery contribute to modern chemistry?
What did Antoine Lavoisier's 1789 discovery contribute to modern chemistry?
What does the Law of Definite Proportions propose about the masses of elements in a compound?
What does the Law of Definite Proportions propose about the masses of elements in a compound?
According to the Laws of Chemical Combination, what will be the total mass at any point in time in any closed system?
According to the Laws of Chemical Combination, what will be the total mass at any point in time in any closed system?
Antoine Lavoisier's 1789 discovery led to the Law of Conservation of Mass
Antoine Lavoisier's 1789 discovery led to the Law of Conservation of Mass
The Law of Conservation of Mass states that mass is created in chemical reactions
The Law of Conservation of Mass states that mass is created in chemical reactions
The Law of Definite Proportions proposes that the masses of elements in a compound always occur in the same proportion
The Law of Definite Proportions proposes that the masses of elements in a compound always occur in the same proportion
According to the Laws of Chemical Combination, the total mass in a closed system will remain the same at any point in time
According to the Laws of Chemical Combination, the total mass in a closed system will remain the same at any point in time
Flashcards
Law of Conservation of Mass
Law of Conservation of Mass
Mass is conserved in chemical reactions; it is neither created nor destroyed.
Law of Definite Proportions
Law of Definite Proportions
The masses of elements in a compound always occur in the same proportion.
Lavoisier's 1789 discovery
Lavoisier's 1789 discovery
It laid the groundwork for modern chemistry and revolutionized science.
Laws of Chemical Combination
Laws of Chemical Combination
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Chemical Reaction Mass
Chemical Reaction Mass
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Lavoisier's contribution
Lavoisier's contribution
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Compound Element Ratio
Compound Element Ratio
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Closed System Mass
Closed System Mass
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Lavoisier's Discovery & Mass Conservation
Lavoisier's Discovery & Mass Conservation
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Mass Created in Reactions?
Mass Created in Reactions?
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Definite Proportions Ratio
Definite Proportions Ratio
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Closed System Mass Consistency
Closed System Mass Consistency
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Study Notes
Laws of Chemical Combination
- The Law of Conservation of Mass states that the mass of a closed system remains constant, and matter is neither created nor destroyed in chemical reactions.
- The Law of Definite Proportions proposes that the masses of elements in a compound always occur in the same proportion, regardless of the source of the compound.
Contributions to Modern Chemistry
- Antoine Lavoisier's 1789 discovery contributed to the development of modern chemistry by leading to the Law of Conservation of Mass.
- The Law of Conservation of Mass is a fundamental principle that underlies all chemical reactions.
Key Concepts
- The Laws of Chemical Combination state that the total mass in a closed system will remain the same at any point in time.
- During chemical reactions, the mass is conserved, and matter is neither created nor destroyed.
- The Law of Definite Proportions, proposed by Joseph Louis Proust, highlights the consistent proportion of elements in a compound, regardless of its source.
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Description
Test your knowledge of the Law of Conservation of Mass and the Laws of Chemical Combination with this quiz. Learn about Antoine Lavoisier's discovery and how mass is neither created nor destroyed in chemical reactions.
