Is sugar water a substance or mixture?

What is the study of how matter and energy interact? a. biology b. physics c. planetary science d. chemistry

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.

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.