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What is change in a substance that does not involve a change in the identity?
Then the physical characteristic of a substance change, it is called a change in state. This most commonly occurs when a substance is heated or cooled. The states that substances are solid, liquid and gas. A common example would be water: ice (solid), water (liquid), and steam (gas).
What are the characteristic of physical change?
Some common characteristics of physical changes are change in texture, change in shape, and change in state. There can also be a change in temperature and a change in color, but these are also common characteristics of chemical changes. A physical change does not change the composition of the original substance.
Is a burning wood into ashes and smoke a physical or chemical change?
Burning wood is a chemical change - although, like most chemical changes it is accompanied by a physical change. Usually we reserve the term physical changes for things like erosion, melting, or evaporation where no change in composition occurs.
Is the gas phase the most ordered phase?
No. The particles of substances in the solid state/phase are the most ordered. The particles of substances in the gas state/phase have the least order.
What is the most important thing you need to remember for a physical change?
The most important thing for your to remember is that in a physical change the composition of a substance does not change and in a chemical change the composition of a substance does change.
What is the main difference between physical change and chemical change?
Physical changes do not make new substances and can be reversed. Chemical changes create new substances and are very difficult to reverse.
What is change in a substance that does not involve a change in the identity?
Then the physical characteristic of a substance change, it is called a change in state. This most commonly occurs when a substance is heated or cooled. The states that substances are solid, liquid and gas. A common example would be water: ice (solid), water (liquid), and steam (gas).
What are the characteristic of physical change?
Some common characteristics of physical changes are change in texture, change in shape, and change in state. There can also be a change in temperature and a change in color, but these are also common characteristics of chemical changes. A physical change does not change the composition of the original substance.
Is bubbles fizzing a physical or chemical change?
Physical. If a substance releases bubbles, it is converting some of its liquid into a gaseous state. The chemical properties do not change, only its present state. A most common physical change is that of watching ice melt in glass of water.
For most substances particles are most need answer in between most and packed packed in the solid state?
For most substances particles are most packed in the solid state?
What is the effect of physical changes?
Physical changes do not change the properties of the substance. You can get back the original state of the substance in most cases by reversing the physical process.
What are the applications based on change of physical state of matter by pressure?
The most important is the liquefaction of gases.
What substances are this state at a very low temperatures?
At very low temperatures most substances are in solid state.
Is a burning wood into ashes and smoke a physical or chemical change?
Burning wood is a chemical change - although, like most chemical changes it is accompanied by a physical change. Usually we reserve the term physical changes for things like erosion, melting, or evaporation where no change in composition occurs.
What is substance that undergo both chemical and physical changes?
A substance that is undergoing a chemical change is called a precipitate.------------------------------------------Initial substances in a chemical reaction are called reactants.
Why most substances expand when they change from a solid to a liquid?
During the melting the structure of the material is destroyed and the liquid is a low oredered state of matter.
When you boil water is it a chemical change or physical change?
It is a physical change, known as a phase transition (see related links below).There is no chemical change: the water molecules remain water molecules. They have simply acquired enough kinetic energy to escape the attraction of the molecules in the liquid and move (almost) freely.
