Determine the hybridization at C1, C2, C3 and C4

At a temperature of 393 k, the temperature of a sample of nitrogen is 1.07 atm what will the pressure be at a temperature of 478 k

Achemical reaction is done in the setup shown, resulting in a change of mass. what will happen if the same reaction is done in a sealed container that is placed on the electronic balance?

Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold