What happens when red litmus is inserted into the jar of NH3 gas? Why ?

How many moles are in 7.2 x 10^23 carbon molecules? (*round to the nearest hundredth and include the unit "mol c" after your number) question 6 options:

Which of the following shapes would represent a molecule with two bonded atoms and 3 lone pairs on only one of them , trigonal planar , bent , trigonal pyramidal , linear

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?