Which of the following is a common physical property of ionic compounds? a. high melting point b. insoluble in water c. conduct electricity when solid d. magnetic

A. High melting point

Explanation:

Ionic compounds are usually composed of metal cations (positively charged ions) and nonmetal anions (negatively charged ions). Ionic compounds contain strong ionic bonds which occur as a result of the attraction between the oppositely charged ions. At room temperature, ionic compounds also tend to be crystalline solids. In this arrangement, not only are the cations and anions attracted to each other within a particular ionic molecule, the cations in one ionic molecule are also attracted to the anions in another ionic molecule. This creates very stable structures with high melting points.

sleep paralysis is a parasomnia, events associated with sleep.

sleep paralysis happens when you are in the middle of waking up or falling asleep. it is the feeling of being conscious but unable to move. it definitely involves hallucinations.

i had a friend that had sleep paralysis and he told me a story one time where he was laying in bed and he couldn't move his body no matter how hard he tried and there was someone standing in the corner of his room coming towards him. he couldn't move and you can't "wake up" because you are already conscious. sometimes sleep paralysis can be triggered by frequent waking up during the night based off of multiple trips to the bathroom, or if you had ever been abused, sleep paralysis can start happening from things like that.

fgravity=10x10=100n case 1

fgravity=30x20=600n case 2

6 times more