What is the equilibrium constant of a reaction? apex?

Which of the following is the electron configuration for an electrically neutral atom of beryllium (Be) ? 1s^2 2s^2 1s2^2s2^2p^6 1s^22s^22p^4 1s^22s^22p^44d^2

How can the chemical formula for methane (CH4) be explained if carbon has two paired and two unpaired electrons? -The carbon atom is extremely reactive and emits an electron from its s orbital in order to bond with four different hydrogen atoms.

What period of the mesozoic era did dinosaurs first appear

If 32.0 g of MgSO4⋅7H2O is thoroughly heated, what mass of anhydrous magnesium sulfate will remain?

A solution is made by dissolving 14.0 g of potassium chloride to a final volume of 78.9 mL solution. what is the weight/weight % or the percent by mass of the solute? (use 1.00 g/mL for the density of water)

How many formula units are there in 2.3g of NH4SO2

In a cooking context, which of the following materials is the best heat conductor? A. Any dense liquid B. Iron C. Gas D. Glass

When you open a bottle of soda, bubbles of carbon dioxide start appearing. Is this a chemical or physical change and why?

Al2 (SO3) 3 what are the number of atoms

How marly electrons are in an atom of elemental sodium?