magnesium is a valuble metal used in alloys, in battries, and thr manufacture of chemicals. it is obtained mostly from seawaterwhich contains about 1.3 grams of Mg for every kilogram of seawater. calculate the volume of seawater in liters needed to extract 8.0 x 104 tons of Mg

Agas mixture with a total pressure of 745 mmhg contains each of the following gases at the indicated partial pressures: co2, 245 mmhg ; ar, 119 mmhg ; and o2, 163 mmhg . the mixture also contains helium gas. part a what is the partial pressure of the helium gas? phe p h e = nothing mmhg request answer part b what mass of helium gas is present in a 10.2-l sample of this mixture at 283 k ? m m = nothing g request answer

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

Aperfume bottle is dropped in the corner of a room. the odor of the perfume can be detected on the other side of the room. which statement best describes this observation?