*The of the substance does not increase or decrease during chemical reactions.* 1️⃣ volume
2️⃣ weight
3️⃣ mass
4️⃣ colour

Which atom or ion is the largest? 0 a. 0 0 0 0 e. li

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.

How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?