Anh Nguyen

6. in the modern model of the atom,each energy level is divided into smaller sublevels or orbitals
7. is any solution in which water is (H2O) is solvent
13. also known as a molecular ion, is a charged chemical species composed of 2 or more atoms covalently bonded or of a metal complex that can be considered to be acting as a single unit
15. form when electrons are lost, charge is + because there are more protons than electrons
16. are the starting materials in a chemical reaction. Reactant undergo change in which chemical reaction. Reactant undergo change in which chemical bonds are broken and new ones are formed to make products
20. states that mass in a isolated system is neither created nor destroyed by chemical reactions or physical transformations
21. 2 compounds exchange ions and form 2 new compounds
22. is a constant term related to the properties of a product
23. a liquid or gel that contains ions and can be decomposed by electrolysis, that present in battery
24. a carbon based compound reacts with oxygen to carbon dioxide (CO2) and water (products)

1. are atoms or group s of atoms with a charge (+ or -). Ions are formed when atom or group of atoms either gain or lose electron
2. form when electrons are gained charge is (-) because there are more electron than protons
3. a chemical equation that does not indicate the relative amounts of the reactants and products
4. the temperature at which a solid substance melts or fuses
5. is an equation for a chemical reaction in which the number of atoms for each element in the reaction
8. low melting points and boiling points, non-electrolytes
9. a single element reacts with a compound and displaces another elements from the compound
10. (g)= gas, (l)= liquid, (s)= solid, (aq)= aqueous
11. the electrons move in definite "orbit" or energy level (n) around the nucleus
12. 2 or more substances (reactants) breaks down into 2 or more simpler substances (products)
14. is the symbolic representation of a chemical reaction in the form of symbols and formula, wherein the reaction entities are given on the left hand side and the product entities on the right hand side
17. is an outer shell electron that is associated with atom
18. type of chemical bond that involves the electronic attraction
19. The number or expression resulting from the multiplication together of two or more numbers or expressions
25. a group of atoms bonded together