QuestionOwl
Sign In Ask Questions

Chemistry

A truck was carrying a substance in a tank. The molecules of that substance were moving apart. The truck parked overnight in a place where energy escaped from the substance. By morning, the substance had turned into a gas. How were the molecules moving in the morning? Explain the molecular movement following the energy transfer. In the morning, the molecules of the substance were moving rapidly and freely, as is characteristic of a gas. This increased motion occurred because when energy was removed from the substance, it likely underwent a phase change from liquid to gas, which happens when the substance's temperature drops below its boiling point under the prevailing pressure conditions. During this process, the attractive forces between the molecules are overcome, allowing them to move apart and disperse, resulting in the gas state. Therefore, even though energy was taken out of the substance, the phase change is what allowed the molecules to move in this manner.

what is atomic and mass number

A shiny, gold-colored bar of metal with a mass of 57.3 grams has a volume of 4.7 mL. What is the density of the metal?

Which stage of grieving is actually a refusal to believe the event is occurring? A. denial B. anger C. bargaining D. depression

What are the three States of matter? 

Which solution has the highest boiling point at standard pressure? (1) 0.10 M KCl(aq) (2) 0.10 M K2SO4(aq) (3) 0.10 M K3PO4(aq) (4) 0.10 M KNO3(aq)

What is the half-life of a radioisotope if 25.0 grams of an original 200.-gram sample of the isotope remains unchanged after 11.46 days? (1) 2.87 d (3) 11.46 d (2) 3.82 d (4) 34.38 d

What happens to the particles of matter when a liquid changes to gas

What might happen to a liquid with a freezing point of 32 degrees if its temperature dropped below 30 degrees?

how much smaller is an electron than a proton​

1 - 10 of 1352