4. a crystalline solid is brittle, has a high melting point, and has low electrical conductivity. which of the following describes the type of bonds within it?

a. ionic bonds between metals and nonmetals

b. covalent bonds between molecules

c. metallic bonds between atoms

d. covalent bonds between ions

5. on the basis of structure, which of the following solids is the most brittle?

a. caf2

b. c6h12o6

c. cu

d. au

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.

Identify the lewis acid in this balanced equation: ag+ + 2nh3 -> ag(nh3)2+a. ag+b. nh3c. ag(nh3)2+

In science class richard learns that a substance has a boiling point of 230 fahrenheit his teacher ask him to convert this temperature to degrees celsius what is the boiling point of his substance in degrees celsius