Unit 7 Flashcards
1
Q
Properties of ionic compounds
A
solid, between metal and nonmetal, net charge of 0, high melting/ boiling point, conductive in a solution
2
Q
electrostatic attraction
A
THe elements have opposite charges and want to exchange each others e- to have stable e- configurations.
3
Q
positive error
A
LOST too much- lost something in addition to H2O, spilled some, put the residue on the balance when it is still hot
4
Q
negative error
A
not heated enough to drive off H2O, allowed the residue to sit in a heated environment for too long, contaminated compound that combined with oxygen and gained mass
