Diga en que período y grupo esta el hidrógeno (z = 1)
c)1,1 A
a) 1, IB
d) 2,1 A
b) 1, II A
e) 2,IB​

How many moles are in 250 grams of tungsten (w)? * 4.4x10^23 moles 4.2x10^23 moles 0.7 moles 1.4 moles

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!

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc