Two units of hydrogen gas and one unit of oxygen gas come together to form 2 units of liquid water.

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)

What is a difference between a mixture of elements and a mixture of compounds

Which of the following is true about the speed of light? it depends on the wavelength.