Across
- 2. an equation represents a chemical reaction using the names of the substances involved
- 5. an insoluble solid that emerges from a liquid solution
- 7. a reaction in which one element is substituted for another element in a compound
- 8. a type of ordering system for elements, which ranks how reactive a certain element is in relation to other elements.
- 10. a reaction in which one reactant breaks down into two or more products
- 12. number placed in front of a formula to balance a chemical equation.
- 13. a reaction in which the products can be changed back into the original reactants
Down
- 1. a reaction in which two elements are substituted for another element in a compound
- 3. a number assigned to an element in chemical combination which represents the number of electrons lost
- 4. a reaction that occurs when two different atoms or molecules interact to form a different molecule or compound
- 6. an equation representing a _____ reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product.
- 9. a chemical reaction between substances, usually including oxygen and usually accompanied by the generation of heat and light in the form of flame
- 11. an equation that represents the reactants and products of a chemical reaction by their symbols or formulas
