Across
- 2. A number written below and to the right of a chemical symbol in a formula, indicating the number of atoms of the element.
- 4. equation: An equation where the number of atoms for each element is equal on both the reactant and product sides.
- 5. The numbers placed before formulas in a chemical equation to balance the equation.
- 7. ratio: The ratio of moles of one substance to moles of another substance in a balanced chemical equation.
- 8. The calculation of reactants and products in chemical reactions based on the balanced equation.
- 10. The reactant that remains after a chemical reaction is complete because it was not completely consumed.
- 12. mass: The mass of a given substance divided by the amount of substa n moles.
- 14. A unit of measurement used in chemistry to express amounts of a substance.
- 15. ratio: The ratio of the masses of two substances in a chemical reaction.
Down
- 1. Substances that undergo a chemical change in a reaction.
- 3. Substances formed as a result of a chemical reaction.
- 6. reaction: The process in which one or more substances are converted into one or more different substances.
- 9. equation: A symbolic representation of a chemical reaction showing the reactants and products involved.
- 11. reactant: The reactant that is completely consumed in a chemical reaction, thereby limiting the amount of product formed.
- 13. number: The number of atoms, molecules, or formula units in one mole of a substance, approximately 6.022 × 10^23.