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Questions and Answers
What is the purpose of the arrow in a chemical equation?
What is the purpose of the arrow in a chemical equation?
- To represent the energy change in the reaction
- To denote the state of matter for each substance
- To separate reactants and products
- To indicate the direction of the reaction (correct)
What are the coefficients next to the symbols and formulas of entities in a chemical equation?
What are the coefficients next to the symbols and formulas of entities in a chemical equation?
- Atomic numbers of the elements
- Molar masses of the substances
- Absolute values of the stoichiometric numbers (correct)
- Oxidation numbers of the elements
Who is credited with diagramming the first chemical equation?
Who is credited with diagramming the first chemical equation?
- John Dalton
- Jean Beguin (correct)
- Antoine Lavoisier
- Dmitri Mendeleev
What does a chemical equation consist of?
What does a chemical equation consist of?
What are the reactant entities in a chemical equation?
What are the reactant entities in a chemical equation?
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