List 3 sources of sound energy?

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?

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

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?