At 298 k, you collect 0.5 l of oxygen over water that has a total pressure of 150 kpa. what is the partial pressure of oxygen. (the partial pressure of water vapor at 298 k is 3.6 kpa).

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Which statements are true concerning mineral formation? check all that apply. the slower the cooling, the larger the crystals. the faster the cooling, the smaller the crystals. crystals formed from magma are smaller than crystals formed from lava. minerals can only form in solutions when the solution is heated deep underground. when a solution cools, elements and compounds leave the solution and crystallize as minerals. minerals formed from hot water solutions can form narrow channels in the surrounding rock.

Many ionic compounds and a few highly polar covalent compounds are because they completely ionize in water to create a solution filled with charged ions that can conduct an electric current.