Part of the reasoning that led van't hoff and le bel to propose a tetrahedral shape for methane, ch4, was based on the number of compounds that are theoretically possible for substituted methanes; that is, compounds in which one or more hydrogens have been replaced by some other group. for example, only one compound of the type ch2x2 has ever been found. is this consistent with a tetrahedral shape? with a square planar shape? provide an explanation for each answer using appropriate diagrams.

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a. the mitochondria b. the nucleus c. the vacuoles d. the endoplasmic reticulum

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.