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Air mainly consists of nitrogen, oxygen, and a small amount of other gases such as carbon dioxide. Water is made up of hydrogen and oxygen atoms bonded together to form molecules of H2O. Metals are composed of closely packed atoms arranged in a crystalline structure, typically involving a lattice of positive metal ions surrounded by delocalized electrons.
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What happens to the particles in a metal when the metal is heated?
When a metal bar is heated....the particles in the area of the metal bar that is hot start vibrating.. knocking into each other and passing the heat energy on to cooler particles. The cooler end that isn't heated still has a rise in temperature just not as much as the heated area because the heat has almost been diluted.
How does salt and water form using the particle theory?
The particles of salt and the particles of water are both moving very fast. The different particles attract to each other so therefore it forms a solution.
How are the paricles in a liquid?
Particles in a liquid have only a small amount of space between each other. They have more energy then solid particles but less energy than gas particles. Particles in liquid roll over each other this is what causes water to flow.
What causes water particles and salt particles to separate?
Water and salt particles separate when salt (sodium chloride) dissolves in water because of the attractive forces between the water molecules and the charged ions that make up the salt. The water molecules surround the salt ions and pull them away from each other, causing them to disperse throughout the water, leading to a homogeneous solution.
Does each substance has particles?
tiny particles
Describe how the motion and arrangement of particles in a substance as the substance freezes?
The particles get attracted to each other, forming a solid.
What are the solid particles of the blood identify and describe each?
Blood cells and plateletes
Describe What happens to the particles in the metal lid when it is run under hot water. why does this trick the lid to be removed more easily?
The heat causes the metal to expand making the lid slightly bigger so that it breaks contact with the jar. That's what it does, how it does it I believe is this. Heat causes the atoms in the metal to move faster or to have more energy. The more energy something has, the more room each atom needs to function. That may be simplistic, but I think that is the idea.
Describe what happens to the particles in the metal lid when it is run under hot water why does this trick allow the lid to be removed more easily?
The heat causes the metal to expand making the lid slightly bigger so that it breaks contact with the jar. That's what it does, how it does it I believe is this. Heat causes the atoms in the metal to move faster or to have more energy. The more energy something has, the more room each atom needs to function. That may be simplistic, but I think that is the idea.
What happens to the particles in a metal when the metal is heated?
When a metal bar is heated....the particles in the area of the metal bar that is hot start vibrating.. knocking into each other and passing the heat energy on to cooler particles. The cooler end that isn't heated still has a rise in temperature just not as much as the heated area because the heat has almost been diluted.
How does salt and water form using the particle theory?
The particles of salt and the particles of water are both moving very fast. The different particles attract to each other so therefore it forms a solution.
Describe the motions of particles in the three common states of matter?
In solids, particles vibrate in fixed positions. In liquids, particles flow and move past each other. In gases, particles move freely and randomly, filling the available space.
What needs to happen for particles of water to freeze into an ice cube?
The water particles must be below 0 degrees. This means that the individual particles no longer have the energy to move around and bonds form between each particle. Water actually expands by 9% as the bonds keep each particle an equal distance from the next.
Are metallic compound homogeneous or heterogeneous?
Metallic compounds are homogeneous mixtures. They are mixtures of different metal elements. But particles of each metal cannot be seen separately.
How are the paricles in a liquid?
Particles in a liquid have only a small amount of space between each other. They have more energy then solid particles but less energy than gas particles. Particles in liquid roll over each other this is what causes water to flow.
How do you describe particles in an expansion of a solid?
In an expansion of a solid, the particles are able to move further apart due to an increase in temperature. This causes the solid to expand in all directions. The particles themselves do not change, but their positions relative to each other do.
Water is made up of particles called?
Water is made up of particles called molecules. Each water molecule consists of two hydrogen atoms covalently bonded to one oxygen atom.
