Write the symbolic notation of an isotope of an element having 8 protons, 8 electrons, and 9 neutrons

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

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.

Many ionic compounds and a few highly polar covalent compounds are because they completely ionize in water to create a solution filled with charged ions that can conduct an electric current.