Instead of using 50 mL for the extraction of NaCl from the mixture, a student used 10 mL water. Specific how would this change influence the calculated percentage of NaCl in the sample?

Which statement about sound is not true? a. air particles travel with sound waves. b. sound waves cannot travel through a vacuum. c. sound waves exist even if no one hears them. d. air particles vibrate along the path of a sound wave.

If a plot weight (in g) vs. volume (in ml) for a metal gave the equation y= 13.41x and r^2=0.9981 what is the density of the metal?

Classify this reaction: 2al+n2-> aln.