When a sodium (Na) atom forms an ion so that it looks like a noble gas with a full valence shell, what will its charge be? 2-
1-
3-
2+
1+
3+

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?

Awoman's basketball has a circumference between 28.5 and 29.0 inches and a maximum weight of 20 ounces (two significant figures). what are these specifications in units of centimeters and grams?

High-pressure liquid chromatography (hplc) is a method used in chemistry and biochemistry to purify chemical substances. the pressures used in this procedure range from around 500 kilopascals (500,000 pa) to about 60,000 kpa (60,000,000 pa). it is often convenient to know the pressure in torr. if an hplc procedure is running at a pressure of 1.03×108 pa , what is its running pressure in torr?