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Questions and Answers
What are the molecules that interact to produce new compounds in a chemical reaction called?
What are the molecules that interact to produce new compounds in a chemical reaction called?
Which law states that matter can neither be created nor destroyed in a chemical reaction?
Which law states that matter can neither be created nor destroyed in a chemical reaction?
What is another name for the 'Law of Constant Proportions'?
What is another name for the 'Law of Constant Proportions'?
In a chemical reaction, what remains conserved according to the law of conservation of mass?
In a chemical reaction, what remains conserved according to the law of conservation of mass?
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What is the defining structure of an element that cannot be broken by any chemical means?
What is the defining structure of an element that cannot be broken by any chemical means?
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According to Dalton's Atomic Theory, what are atoms described as?
According to Dalton's Atomic Theory, what are atoms described as?
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What does the atomic radius represent?
What does the atomic radius represent?
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What is the mass number of an element equal to?
What is the mass number of an element equal to?
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What is atomic mass commonly expressed in terms of?
What is atomic mass commonly expressed in terms of?
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How is molecular mass calculated?
How is molecular mass calculated?
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Study Notes
Chemical Reaction Concepts
- Molecules that interact to produce new compounds in a chemical reaction are called reactants.
- The Law of Conservation of Mass states that matter can neither be created nor destroyed during a chemical reaction.
- The Law of Constant Proportions is also known as the Proust's Law.
Conservation and Structure in Chemistry
- According to the law of conservation of mass, mass remains conserved; the total mass of reactants equals the total mass of products in a chemical reaction.
- The defining structure of an element that cannot be broken down by any chemical means is an atom.
Dalton's Atomic Theory and Atomic Properties
- According to Dalton's Atomic Theory, atoms are described as indivisible particles that combine in whole-number ratios to form compounds.
- The atomic radius represents the distance from the nucleus of an atom to the outermost electrons, indicating the size of the atom.
Mass and Molecular Calculations
- The mass number of an element is equal to the total number of protons and neutrons in its nucleus.
- Atomic mass is commonly expressed in terms of atomic mass units (amu).
- Molecular mass is calculated by summing the atomic masses of all atoms present in a molecular formula.
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Description
Test your knowledge on chemical reactions and the laws of chemical combination with this quiz. Explore concepts like reactants, products, conservation of mass, and more.