Use the following chemical to answer the next 3 questions:
NaOH
2. Is this a mixture or a compound? (1 mark)It is a mixture
3. Is this a covalently bonded molecule or an ionically bonded molecule? How do you know? (2 marks)
4. Would it dissolve in water? Why or why not? (2 marks)
Help with these please. :)
2007-01-22 08:08:39 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Other - Science
It's a compound, being pure substances joined together by chemical bonds. A mixture is a blend of substances but without chemical bonds between them.
The bonding is a little tricky here. The O and H are bonded covalently to make an OH, but the bond between the OH and the Na is ionic.
It would dissolve in water to form Na+ and OH- ions, since water is a polar substance and the bonds are ionic.
2007-01-22 08:15:55 · answer #1 · answered by . 4 · 0⤊ 0⤋
Sodium hydroxide is a compound because they are chemically bound together in a fixed mass ration, that is ionically bonded(alkali earths I.e., sodium, participates in ionic bonding) and dissolves in water because as a compound it can be broken down into its components: Na and OH
2007-01-22 08:18:05 · answer #2 · answered by lynn y 3 · 0⤊ 0⤋