1. how many liters of o2 are needed to react completely with 45.0 l of h2s at stp? 2h2s(g) + 3o2(g) > 2so2(g) + 2h2o(g) 2. describe the shapes and relative energies of the s, p, d, and f atomic orbitals. 3. explain how atoms (ions) are held together in an ionic bond. give the example of an ionic compound. show all work .

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.