The students determined that a new substance formed and a chemical reaction took place. Which pieces of evidence from their observations best support this conclusion? Group of answer choices

substance dissolves, precipitate forms, color changes

color changes, temperature changes, precipitate forms

state change occurs, gas is released, substance dissolves

temperature changes, production of a gas, color changes

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

smooth muscle is composed of involuntary muscles found within the walls of organs and structures such as the esophagus, stomach, intestines, and blood vessels. those muscles push materials like food or blood through organs. unlike skeletal muscle, smooth muscle can never be under your control.