Sublimation occurs because the atoms in a solid must gain enough energy to form a gas without passing through the liquid state.

Energy is related to the change of state represented by the model in this way – C. Atoms lose energy as a gas changes to a solid. As a certain gas is changing its state into that of a solid material, its atoms are going to lose some energy.

Answer Expert Verified I believe the change of state shown in the model is deposition. Deposition is a process in which gases change phase and turns directly in solids without passing through the liquid phase. It is the opposite of sublimation.

One change of state happens when you add energy to the substance. This change of state is called melting. By adding energy to the molecules in a solid the molecules begin to move quicker and can break away from the other molecules.

Common changes of state include melting, freezing, sublimation, deposition, condensation, and vaporization./span>

Adding or removing energy from matter causes a physical change as matter moves from one state to another. For example, adding thermal energy (heat) to liquid water causes it to become steam or vapor (a gas). Physical changes can also be caused by motion and pressure./span>

Changes of state are physical changes in matter. They are reversible changes that do not change matter’s chemical makeup or chemical properties. Processes involved in changes of state include melting, freezing, sublimation, deposition, condensation, and evaporation./span>

Physical conditions like temperature and pressure affect state of matter. When thermal energy is added to a substance, its temperature increases, which can change its state from solid to liquid (melting), liquid to gas (vaporization), or solid to gas (sublimation).

Matter usually changes state when you add or take away heat, which changes the temperature of the matter. Now let’s explore these three basic ways that states of matter can be changed: freezing, melting, and boiling./span>

Matter changes state when energy is added or taken away. Most matter changes because of heat energy. When matter is heated enough, the molecules move faster and with greater energy. If enough heat is added, a solid can become liquid and a liquid can become gas.

Four states

plasmas

The mass of these three particles is less than the mass of a neutron, so they each get some energy as well. So energy and matter are really the same thing. So in a way, energy, matter, space and time are all aspects of the same thing./span>

Matter can exist in one of three main states: solid, liquid, or gas. Solid matter is composed of tightly packed particles. A solid will retain its shape; the particles are not free to move around. Liquid matter is made of more loosely packed particles.

The common things among the three states of matter are: They are made up of small tiny particles. They have a particular mass and can occupy space. The atoms of these three states have force of attractions between them.

gas

Different substances have different properties; density is one property that can be used to tell two substances apart. Density is a property that does not depend on the shape or size of an object.

physical and chemical properties. Examples of physical properties are: color, smell, freezing point, boiling point, melting point, infra-red spectrum, attraction (paramagnetic) or repulsion (diamagnetic) to magnets, opacity, viscosity and density. There are many more examples.

Identifying Unknown Substances. In order to solve a mystery, we often need to identify poisons, gunshot residue and other substances. Color, odor, and reaction to other substances are unique for individual substances and can help to identify important clues.

Identifying Unknown Substances

• Smell: Most chemists can identify solvents by their distinctive smells (though this is a pretty bad idea). ¹
• Melting point: If you’ve got very pure crystals, you can use their melting point to figure out which of several possible chemicals you’ve got.

describe three steps that can be used to identify a material?…

• decide which properties to test.
• 2.do test on sample of the unknown.
• compare results with data reported for known materials.

Learn to identify it using one of the following methods: through precipitation, using conduction, using a flame test, using an acid-base indicator and observing the color of the solution.

There are five signs of a chemical change:

1. Color Change.
2. Production of an odor.
3. Change of Temperature.
4. Evolution of a gas (formation of bubbles)
5. Precipitate (formation of a solid)