The total pressure of a mixture of hydrogen, oxygen, and methane is 96.4 kpa. the partial pressures of hydrogen and oxygen are 13.5 kpa and 29.3 kpa respectively. what is the partial pressure of methane?

This drawing shows a human body system. what is the primary function of this body system?

What is a metal replacement reaction

Insoluble sulfide compounds are generally black in color. which of the following combinations could yield a black precipitate? check all that apply. na2s(aq)+kcl(aq) li2s(aq)+pb(no3)2(aq) pb(clo3)2(aq)+nano3(aq) agno3(aq)+kcl(aq) k2s(aq)+sn(no3)4(aq)