A student has a balloon with a volume of 2.5 liters at a temperature of 20°C. As the day warms up to 40°C the student notices their balloon changing size. What is the
new volume of the student's balloon?

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

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.

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.