The total energy stored in the atoms and molecules within a substance is called? internal energy

external energy

temperature (wrong answer)

Kelvin ​

Iron reacts with sulfur to form iron sulfide. if 60 grams of iron reacts with sulfur to produce 90 grams of iron sulfide, how much sulfur has been used in the chemical reaction?

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?