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?

If a planet rotates 360 degrees during a 24 hour time period, what does that tell us about the planet? a. the middle of the planet is in darkness b. the seasons on the planet vary every day. c. the planet runs on a 12-hour time clock. d. the temperature on the planet varies daily.

Two things that biomedical has invented or innvated

How many valence electrons are in atom of radon?