Chapter 10 Vocabulary

2. A substance made up of atoms of two or more different elements joined by chemical bonds
7. A chemical reaction that breaks down compounds into simpler products. AB->A+B
9. A chemical substance that is present at the start of a chemical reaction
10. A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
11. of Conservation of Mass- The law that states that mass cannot be created or destroyed in ordinary chemical and physical changes
13. A number written slightly below and to the right of a chemical symbol that shows how many atoms of an element are in a compound.
14. A chemical change in which an element or a compound reacts with oxygen, often producing energy in the form of heat and light

1. A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
3. A pure substance made of only one kind of atom.
4. A solid that forms from a solution during a chemical reaction.
5. A substance produced after a chemical reaction occurs
6. The reaction of the ions of acids and the ions of bases (hydronium ions and hydroxide ions) to form water molecules and a salt
8. The process by which one or more substances change to produce one or more different substances
12. A chemical reaction in which two or more substances combine to form a new compound