When a piece of metal mass of 69.42g is dropped into a graduated cylinder containing 24.18mL of water, the water level rises to 29.8 mL. what is the density of the metal?

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.

Word equation for k+ h2o yield koh + h2

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?