Method that used to separate kerosine and water?

If 4.0 g of hydrogen and 10.0 g of oxygen are mixed according to the equation 2 h2 + o2 → 2 h2o, which is the limiting reagent?

A radioactive sample has a half life of 1500 years. A sealed tube containing 1g of the sample will contain after 3000years. (A) 1 g of the sample (B) 0.5 g of the sample (C) 0.25 g of the sample (D) 0.00 g of the sample

The student who performed this experiment in the question above wrote the following discussion: "The gas sample is known to contain compounds of only hydrogen and carbon. The measured molecular weight of the flammable gas is closest propane (44.

How many bromines atoms are present in 33.3 g of ch2br2?

How much mass would a mole of nitrogen molecules contain

Which usually has a higher temperature? A city or the areas around the city?

Toluene and pyridine form ideal solutions. Consider a solution of toluene and pyridine prepared at 25°C. Assuming that the mole fractions of toluene and pyridine in the vapor phase are equal, calculate the composition of the solution.

Formula for water what does the lack of a subscript after those O indicate

Why do the chemical properties cycle through each period? Every eighth element starting with hydrogen restarts the transition from metal to inert gas. Elements with atomic numbers which are multiples of eight start a new period.

Which statement correctly describes the Ka of a weak acid? The Ka is large, and the equilibrium favors products. The Ka is large, and the equilibrium favors reactants. The Ka is small, and the equilibrium favors products.