8-56 propose mechanisms consistent with the following reactions. (a) (a) br hbr roor (b) h2so4(b) ohh 2o (c) hbr (c) br br (d) chbr3 naoh (d) br br (e) (e) br br cl br hcl ch3ch2oh och2ch3 (f) o ch3ch2 h , h2o h oh h oh ch2ch3 ch2ch3

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.

The volume of a single vanadium atom is 9.29×10-24 cm3. what is the volume of a vanadium atom in microliters?

Which proportionality applies to avogadro’s law?