CHEM 1205 REVIEW EXAMS LATEST QUESTIONS
AND ANSWERS SURE A+
✔✔covalent bond - ✔✔sharing of electrons between 2 atoms
✔✔molecule - ✔✔two or more atoms held together by covalent bonds
✔✔when a metal and nonmetal combine, ___________ is formed - ✔✔ionic bond
✔✔when two nonmetals bond or a metalloid bonds to a nonmetal the bond is -
✔✔covalent
✔✔Anion - ✔✔negatively charged ion (more electrons than protons)
✔✔metals form ____ ions - ✔✔cations
✔✔nonmetals form ______ ions - ✔✔negative anions
✔✔ionic compounds are composed of - ✔✔cations and anions
✔✔ionic compound overall charge must be - ✔✔0
, ✔✔ionic compounds have - ✔✔high melting and boiling points
✔✔polyatomic ion - ✔✔a cation or anion that contains more than one atom
✔✔diatomic molecules - ✔✔H, N, O, F, Cl, Br, I
✔✔linear - ✔✔180 degrees
✔✔trigonal planar - ✔✔120 degrees
✔✔Tetrahedral - ✔✔109.5 degrees
✔✔water has a __________ shape - ✔✔bent
✔✔potential energy - ✔✔stored energy
✔✔kinetic energy - ✔✔energy of motion
✔✔melting - ✔✔solid to liquid
✔✔Exothermic - ✔✔releases energy
✔✔Endothermic - ✔✔Absorbs heat
✔✔Melting is: - ✔✔endothermic
✔✔Freezing - ✔✔liquid to solid, exothermic
✔✔Vaporization - ✔✔liquid to gas (endothermic)
✔✔Sublimation - ✔✔solid to gas
✔✔Deposition - ✔✔gas to solid
✔✔heating curve - ✔✔heat is added
✔✔cooling curve - ✔✔heat is removed
✔✔ Water freezes at - ✔✔32 F and 0 C
✔✔Water boils at - ✔✔100 degrees Celsius or 212 degrees Fahrenheit
AND ANSWERS SURE A+
✔✔covalent bond - ✔✔sharing of electrons between 2 atoms
✔✔molecule - ✔✔two or more atoms held together by covalent bonds
✔✔when a metal and nonmetal combine, ___________ is formed - ✔✔ionic bond
✔✔when two nonmetals bond or a metalloid bonds to a nonmetal the bond is -
✔✔covalent
✔✔Anion - ✔✔negatively charged ion (more electrons than protons)
✔✔metals form ____ ions - ✔✔cations
✔✔nonmetals form ______ ions - ✔✔negative anions
✔✔ionic compounds are composed of - ✔✔cations and anions
✔✔ionic compound overall charge must be - ✔✔0
, ✔✔ionic compounds have - ✔✔high melting and boiling points
✔✔polyatomic ion - ✔✔a cation or anion that contains more than one atom
✔✔diatomic molecules - ✔✔H, N, O, F, Cl, Br, I
✔✔linear - ✔✔180 degrees
✔✔trigonal planar - ✔✔120 degrees
✔✔Tetrahedral - ✔✔109.5 degrees
✔✔water has a __________ shape - ✔✔bent
✔✔potential energy - ✔✔stored energy
✔✔kinetic energy - ✔✔energy of motion
✔✔melting - ✔✔solid to liquid
✔✔Exothermic - ✔✔releases energy
✔✔Endothermic - ✔✔Absorbs heat
✔✔Melting is: - ✔✔endothermic
✔✔Freezing - ✔✔liquid to solid, exothermic
✔✔Vaporization - ✔✔liquid to gas (endothermic)
✔✔Sublimation - ✔✔solid to gas
✔✔Deposition - ✔✔gas to solid
✔✔heating curve - ✔✔heat is added
✔✔cooling curve - ✔✔heat is removed
✔✔ Water freezes at - ✔✔32 F and 0 C
✔✔Water boils at - ✔✔100 degrees Celsius or 212 degrees Fahrenheit
