How much heat is absorbed by a 750-g iron skillet when its temperature rises from 25oc to 125 oc? the specific heat of iron is 0.449 j/goc.

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.

In what environment would mineral formation caused by high pressures and high temperatures most likely occur?

Use the periodic table to complete this equation that represents nuclear fission processesun - ba c 3 n