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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 indicate a reversible reaction
- To separate reactants and products
- To show the direction of the reaction (correct)
- To balance the equation
What do the coefficients next to the symbols and formulas in a chemical equation represent?
What do the coefficients next to the symbols and formulas in a chemical equation represent?
- Atomic mass of the substance
- Absolute values of stoichiometric numbers (correct)
- Number of atoms in the substance
- Electron configuration of the substance
When was the first chemical equation diagrammed?
When was the first chemical equation diagrammed?
- 1800
- 1550
- 1750
- 1615 (correct)
What type of formulas may be used in a chemical equation?
What type of formulas may be used in a chemical equation?
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What are the entities given on the left-hand side of a chemical equation?
What are the entities given on the left-hand side of a chemical equation?
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