what is the electron configuration of a Cl-1 ion? I know there’s different ways people write it but i need it in the format of #-#-# if you know what i mean.

Use the standard enthalpies of formation for the reactants and products to solve for the δhrxn for the following reaction. (the δhf of c2h4 is 52.26 kj/mol, co2 is -393.509 kj/mol, and h2o is -241.818 kj.) c2h4 (g) + 3o2(g) 2co2 (g) + 2h2o(g) δhrxn = the reaction is .

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

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.