Which three human body systems coordinate to cause the arm to move

Adilute aqueous potassium nitrate solution is

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided

Which statement best describes what happens when molecular compounds melt