In a laboratory experiment, the density of a concentrated sugar solution was determined by measuring the volume of the solution and corresponding mass. Three
students each made a set of measurements using a different balance and used the
results to calculate density. Their results are summarized here.
What is the average deviation for set 2?
Density (g/mL)
Set 1 Set 2 Set 3
Trial
a
1.380 1.347 1.418
b
1.400 1.479 1.499
С
1.374 1.416 1.301

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.