What is the empirical formula of the polymer formed from ethene?

What does x represent in the formula for the compound xcl4?

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.

For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 4al(s)+3o2(g)→2al2o3(s) a) 1 molal, 1 mol o2 b) 4 molal, 2.6 mol o2 c) 16 molal, 13 mol o2 d) 7.4 molal, 6.5 mol o2