Examine the chemical equation: C17H170N3(s) + 2C4H603(1) -->
C2182105N(s) + 2C2H4O2(1)Does the equation describe a chemical
change or a physical change? Explain.

Water ionizes by the equation h2o(l)⇌h+(aq)+oh−(aq) the extent of the reaction is small in pure water and dilute aqueous solutions. this reaction creates the following relationship between [h+] and [oh−]: kw=[h+][oh−] keep in mind that, like all equilibrium constants, the value of kw changes with temperature.

Apush or pull that moves or changes and object when to objects touch

How many moles of water are created if 3 moles of hydrogen react completely with excess oxygen?