Compare and contrast triads versus the Law of Octaves. What are the similarities and differences?

What are transitions between a liquid and gas called? identify which way they are transitioning

Upon decomposition, one sample of magnesium fluoride produced 1.65 kg of magnesium and 2.56 kg of fluorine. a second sample produced 1.32 kg of magnesium. part a how much fluorine (in grams) did the second sample produce?

How many neutrons does an element have if its atomic number is 50 and its mass number is 166