I would say it is a chemical change because after a while, the nails start to rust. Now they only rust after about a week though. But rust is a chemical change.
Answer:
I would say the answer is 2
Answer:
d = all are premise of KMT.
Explanation:
A
Gas particles are extremely small and have relatively large distance between them.
B
Gas particles are continuously moving in random, straight-line motion as they are collide with each other and the container walls.
C
The average kinetic energy of gas particles is proportional to the temperature of gas.
All these are the premise of kinetic molecular theory. According to kinetic molecular theory, the particles pf gases are very small and randomly move in the available space. They move freely in straight line and colloid with each other and also the wall of container. This collision is elastic. As molecules strike with each other and walls of container their energy increases, and they gets warmer. So their kinetic energy is proportional to the temperature because mass of particle is constant.
The rest of the wood was burned into gases of equivalent weight.
<u>Explanation</u>:
The rest of the wood was burned into gases of equivalent weight.
- When wood is burnt in the open air, with the help of oxygen and heat, it is transformed into carbon dioxide, water vapor, and ashes.
- Ignition and combustion of wood mainly depend on pyrolysis which is also known as thermal combustion.
- The loss in weight of the ashes is due to the fact that gases and water vapor are also formed due to the combustion of wood.
