2007-03-08 11:54:25 · 5 answers · asked by brucelee135 1 in Science & Mathematics ➔ Chemistry
Here read up, it tells the story much better than I can.
2007-03-08 12:03:19 · answer #1 · answered by Old guy 124 6 · 0⤊ 0⤋
The melting point is a reflection of how hard it is to pull the bonds apart. Strong bonds have a high melting point.
Ionic bonds are very strong, due to elecrical attraction, and have very high melting point. For example, NaCl melts at over 800 oC. SOme ionic compounds melt at thousands of degrees.
Covalent compounds have weak bonds and melt at low temperatures. Non polar compunds, such as the gases, melt at -200 oC. Polar covalent are a bit better, but still melt relatively low. You can easily melt sugar in a frying pan and get carmelized sugar
2007-03-08 20:04:20 · answer #2 · answered by reb1240 7 · 0⤊ 0⤋
Ionic. Involves a higher molecular weight with the metal involved.
2007-03-08 19:59:02 · answer #3 · answered by thewordofgodisjesus 5 · 0⤊ 0⤋
Ionic because they have a negative charge and that is harder for it to melt?
2007-03-08 19:57:02 · answer #4 · answered by jbwelder5689 1 · 0⤊ 0⤋
Covalent because they are sharing electrons
2007-03-08 19:59:41 · answer #5 · answered by perplebunny 2 · 0⤊ 0⤋