What bond would ba and br make?

What does the cell nucleus do or, how does it function?

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )