How many grams of sodium sulfide are formed if 1.80 g of hydrogen sulfide is bubbled into a solution containing 2.40 g of sodium hydroxide, assuming that the sodium sulfide is made in 93.0 % yield?

The reaction of sodium sulfide with hydrogen sulfide can be shown as

Sodium hydroxide is completely reacting and thus act as limiting reactant

Thus, 2.31 g Na2S produced.

i dont know

explanation:

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.