Which of the following chemical equations is balanced correctly? A. C6H6 + O2 2CO2 + H2O
B. CS2 + 3Cl2 CCl4 + S2Cl2
C. B2O3 + 2C B4C + CO
D. Cl2 + NaI 2NaCl + I2

Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .

Aprisoner is forced to go into one of three rooms, but he can choose which room. the first room is ablaze with fire. the second one is rigged with explosives that will go off as soon as he enters. the third contains a pair of lions who haven't eaten in years. which room should he choose to survive?

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine