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?

How air particles exert a pressure on the inside of the balloon

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.