Which of the following examples BEST describes the life characteristic of movement? Human skin and lungs release carbon dioxide.
The oak tree takes in water and minerals for food.
The starfish cells divide and multiply to increase its size.
A cheetah races across the plain.

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

it should be all of them because it asks if you included all of those in your answer

explanation:

the answer is barium and copper bromide