Which of these is an example of a pure substance? Select one:
A glass of juice
A bowl of cookies
A bag of nuts
A bar of gold

An alcohol thermometer makes use of alcohol's changing in order to measure temperature. as the temperature goes up, the alcohol contained in the thermometer increases in volume, filling more of the thermometer's tube.

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.

Chemical engineering who specializes in negotiating for large purchases and instructing customers in use of the products are