What piece of information connects mass and moles?

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.

Modern weaponry has increased the number of deaths in wars and violent conflicts.

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?