If the entropy change for a system at 100.0 c is - 20.0 J/K, then which of the following describes the heat?

A) 2.00 kJ heat added

B) 2.00 kJ heat removed

C) 7.46 kJ heat added

D) 7.46 kJ heat removed

Chemical reactions with metals may create some interesting results such as precipitate. What is precipitate?

Angle RST is a right angle. Angle RSU has a measure of 25°. What is the measure of angle TSU? 25° 45° 65° 75°

What best explains why a person can become sunburned by spending too much time at the beach

A building that is utilizing large windows on its southern side for heating is an example of the use of

A driver wearing a seat beat decelerates at roughly the same rate as the car it self. Since many modern cars have a "crumble zone" built into the front of the car, let us assume that the car decelerates of a distance of 0.9 m.

What is the approximate increase in size from a 1 w to a 2w carbon resistor?

I am looking for this answer : Which shows a correct order of steps in the scientific method? develop a hypothesis, analyze data, make observations, draw conclusions make observations, draw conclusions, develop a hypothesis, analyze data.

A gas in a piston is compressed doing - 439 j of work, and its internal energy increases by 318 j. how much heat flows? (be careful with + and -. + w = expansion. + q = added, + u = temp goes up) (unit = j)

A loop of wire is placed in a uniform magnetic field. (a) For what orientation of the loop is the magnetic flux a maximum? The plane of the loop is perpendicular to the magnetic field. The plane of the loop is parallel to the magnetic field.

Dr. Arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode.