Heating water so that it boils is an example of . an exothermic change

a chemical change

an endothermic change

a change in mass

Asample of a gaseous substance changes into liquid. this process is called (blank) and it takes place when heat is (blank) a gaseous system

The plum pudding model of the atom states that ?

The image shows the positions of a car on a roller coaster track. arrange the cars in order based on their gravitational potential energy. begin with the lowest potential energy and end with the highest.