Does sugar dissolve faster in cold water or hot water? explain your answer.

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

Describe different biomes. what are some adaptations that organisms (plants or animals) must have to live in each biome?

Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.