I have 17 min help plz?

This chart represents the melting point of several substance. what besy explains the high melting point of the salt?

According to the tide table below what time of day will the highest tide occur?

Freezing 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.