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What happens when a pure substance undergoes a chemical changes?
when a pure substance undergoes a chemical change it is no longer that same substance. A chemical change changes the identity of the substance. Hope i helped
When a substance is cooled what happens to its particles how does cooling affect the volume of the substance?
When a substance is cooled, its particles lose kinetic energy and move more slowly, causing them to come closer together. This reduction in particle movement typically results in a decrease in the volume of the substance, as the particles occupy less space. In most cases, this leads to the substance contracting; however, exceptions exist, such as water, which expands upon freezing.
When using the particle model of matter to describe what happens to the density of a substance when it cools?
The density of the substance becomes higher because of the particles slow down and move closer together when the substance cools.
What happens to a temperature of a substance while a changing of state occurs?
As a substance changes state, the temperature remains constant.
What happens to the speed particles the temp is increased?
As the temperature of a substance increases, the speed of its particles also increases. This is because higher temperatures provide more energy to the particles, causing them to move more vigorously. In gases, for example, this results in increased pressure and volume if the gas is allowed to expand. In solids and liquids, faster particle movement can lead to changes in state, such as melting or boiling.
What happens when to particles of a substance when it condenses?
Particle Movement decreases.
What happens to particle movement as heat is added?
As heat is added to a substance, the particles in the substance gain kinetic energy and move faster. This increased movement causes the particles to vibrate and collide more frequently, leading to an expansion of the substance.
What happens to the particle in a substance when it is cooled?
i. dont.know
If you add heat energy to a substance what happens to the speed of the particle motion?
The particle speed increases.The energy increases; the speed increases.
When a substance changes state what happens to its thermal energy?
Changes the temperature of the substance
What happens when a substance changes from a liquid to a vapor?
It evaporates?
What happens at the melting of a substance?
The solid changes into a liquid
What happens when a substance changes from a gas to liquid?
It "condenses".
Change 3 explain what happens to the identity of a substance in a physical change 4- explain what causes a substance to change from one state to another 5- explan what happens to particle size?
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What happens when a pure substance undergoes a chemical changes?
when a pure substance undergoes a chemical change it is no longer that same substance. A chemical change changes the identity of the substance. Hope i helped
What happens when a substance change states?
When a substance changes state, Energy within the substance is gained or lost, but the composition is unchanged.
What happens when one substance changes into one or more new substances?
it just creates a new substance!
