How many grams does 6.60 x 10^22 molecules of SiO weigh?

The molecular formula for caffeine is cshion402. which of the following elements is not found in caffeine?

What occurs when a cell engulfs large food particals

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.