In the following reaction, which substance is the precipitate?

(nh4)2so4(aq) + ba(no3)2(aq) baso4(s) + 2nh4no3(aq)

(nh4)2so4
ba(no3)2
baso4
nh4no3

In order for the bug to fly through the air a force has to push the bug forward. identify this force. how does the bug produce

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.

Explain what happens at the saturation point when adding salt to water at room temperature.