Question 2 The higher the energy, the higher or lower the wavelength? This is an example of a/an direct or inverse relationship?

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.

The mole ratio of hydrogen to ammonia is 3: 2.