In a car cylinder, a piston moves up and down inside a cylinder, causing the substance inside to expand and contract. which type of substance could be inside the cylinder?
gas only
liquid only
liquid or solid only
gas, liquid, or solid

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions

In order to complete this lab. you will need to be familiar with some common chemistry terms. complete the chemical change puzzle and list the relevant terms and their meaning below a.rectant b.product c.supernate