Does nickel form a precipitate when mixed with ammonia or does it form a soluble product?

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

Particles vibrate in a rigid structure and do not move relative to their neighbors.

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon