氢氧化物

氢 = 气 + 又 + 工 : The Queen of Hearts (qi) is building a zeppelin in front of the engine ((e)ng1) by attaching a lot of hydrogen (氢) filled balloons (气) to a steel beam (工). In order not to accidentally pop a balloon with her finger nails she uses boxing gloves (又).

氧 = 气 + 羊 : Maud Younger (y) gave the sheep (羊) a balloon (气) inside of the anglepod (ang3), but unfortunately it doesn't float because it is filled with oxygen (氧).

化 = 亻 + 匕 : Helga Horse and Rosa Luxemburg conduct an experiment in the ashram's bathroom. Using a transformer, they melt a ladle.

物 = 勿 + 牛 : Willy Walrus (w) wants to become a physicist (物) and does research about dark matter (物) in the space station's bathroom (Ø4). His motivation is to become a super villain and rule the world. Just as he is about to have a breakthrough, a huge black ox (牛) flying with the help of bat wings (勿) hits Willy with an oxerang and takes away the dark matter, saving the world.