Which of the following families contain elements that can be used to fill lightbulbs and cause them to glow brightly when exposed to an electric
current?
Metalloids
Alkaline earth metals
Noble gasses
Halogens

What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?

Nitrogen (n), phosphorus (p), and potassium (k) are the main nutrients in plant fertilizers. according to an industry convention, the numbers on the label refer to the mass percents of n, p2o5, and k2o, in that order. calculate the n: p: k ratio of a 30: 10: 10 fertilizer in terms of moles of each element, and express it as x: y: 1.0.

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form