Properties
This state of matter has a fixed shape but no fixed volume.
What is a solid?
This state of matter has a fixed shape but no fixed volume.
What is a solid?
This kind of change occurs when salt is mixed in water.
What is a physical change?
A cube of wood has a mass of 30 g and a volume of 15 cm³. This is its density.
What is 2 g/cm³?
This describes the motion of particles in solids according to KMT.
What is that particles vibrate in fixed positions?
This principle implies that mass is conserved in a closed system and cannot be created or destroyed.
What is the principle of conservation of mass?
According to kinetic molecular theory, this describes the behavior of particles in a gas.
What is that gas particles move freely and are far apart?
This type of change is represented by a candle burning
What is a chemical change?
This is the mass of the mercury in a container weighing 70 g and filled with mercury weighing 280 g.
What is 280 g?
According to KMT, this describes the behavior of particles in liquids.
What is that particles are close together but can slide past each other?
This is an indication of a chemical change.
What is a change in color or formation of a gas?
This occurs to particles during vaporization.
What is that particles gain energy and move apart?
This is an example of a physical property.
What is the color of a substance?
This is the density of a liquid that weighs 150 g in a container weighing 50 g, with a volume of 25 cm³.
What is 4 g/cm³?
This is what KMT says about gas particle collisions.
What is that gas particles collide elastically, with no loss of energy?
This defines a property that can be measured numerically.
What is a quantitative property?
This is how gas particles behave when they are heated.
What is that they move faster and spread out more?
This is what boiling water illustrates.
What is a phase change from liquid to gas?
A liquid with a density of 0.8 g/cm³ would do this in water.
What is float?
According to KMT, this is how temperature relates to particle energy.
What is that as temperature increases, particle energy increases, leading to faster motion?
This is the distinction between a physical change and a chemical change.
What is that a physical change alters the form but not the composition, while a chemical change alters the composition?
This is the reason solids are generally incompressible.
What is that there is little space between particles in solids?
This describes the behavior of particles in solids, liquids, and gases when temperature changes.
What is that in solids, particles are closely packed; in liquids, they are less tightly packed; in gases, they are very far apart and move quickly?
This is how temperature influences the density of a substance.
What is that typically, as temperature increases, density decreases due to increased particle motion?
This explains how pressure affects gas particles in terms of KMT.
What is that increasing pressure compresses gas particles closer together, resulting in less volume?