Questions and Answers
What are the coefficients next to the symbols and formulas in a chemical equation?
Absolute values of the stoichiometric numbers
What does a chemical equation symbolically represent?
A chemical reaction with reactants on the left-hand side and products on the right-hand side
When was the first chemical equation diagrammed?
1615
How are the reactant entities and product entities arranged in a chemical equation?
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What does the arrow in a chemical equation indicate?
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Chemical formulas in a chemical equation are always represented using pictorial diagrams.
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The coefficients next to the symbols and formulas in a chemical equation are the stoichiometric numbers.
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The reactant entities in a chemical equation are placed on the right-hand side.
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The first chemical equation was diagrammed by Jean Beguin in 1615.
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A chemical equation consists of a list of products on the left-hand side.
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Study Notes
Chemical Equation
- A chemical equation is a symbolic representation of a chemical reaction, using symbols and chemical formulas.
- Reactants are listed on the left-hand side, while products are listed on the right-hand side.
- A plus sign (+) separates entities in both reactants and products.
- An arrow pointing towards the products indicates the direction of the reaction.
Chemical Formulas
- Chemical formulas can be symbolic, structural (pictorial diagrams), or intermixed.
Coefficients
- Coefficients are the absolute values of the stoichiometric numbers.
- They are placed next to the symbols and formulas of entities.
History of Chemical Equations
- The first chemical equation was diagrammed by Jean Beguin in 1615.
Structure of a Chemical Equation
- A chemical equation consists of a list of reactants (starting substances) on the left-hand side.
- An arrow symbol separates the reactants and products.
- A list of products (substances formed in the chemical reaction) is listed on the right-hand side.
- Each substance is specified by its chemical formula, optionally preceded by a number.
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