Electrolysis uses electrical current to break water molecules into oxygen gas and hydrogen gas. how do you know that this is a chemical change?

What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.

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

The diagram shows the relationship between scientific disciplines. the names of some scientific disciplines have been removed from the boxes. which scientific discipline belongs in the blue box? a. physics b. biology c. chemistry d. metallurgy