How do you find inner shell electrons?

Select the correct answer. when carbon dioxide dissolves in water, it sometimes reacts with water to form carbonic acid as in this balanced equation: co2 + h2o → h2co3. if 495 milliliters of carbon dioxide at 25°c and 101.3 kilopascals reacts with excess water, what is the theoretical yield of carbonic acid? use the periodic table and the ideal gas resource a. 0.889 g b. 1.10g c. 1.27g d. 2.02g what's the answer! quick!

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons