Is spilling cake batter a physical or a chemical change? explain why?

Matches the chemical name of each oxide of phosphorus to its chemical formula

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation: