following is an example of a chemical change?
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A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity. Examples of chemical changes are burning, cooking, rusting, and rotting. Examples of physical changes are boiling, melting, freezing, and shredding.
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Burning is an example of a chemical change. Signs of chemical change include the release of bubbles, a change of color, production of an odor, release of heat and light, and production of loud sounds. Because chemical changes result in different substances, they often cannot be undone.
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A chemical reaction happens when one or more chemicals are changed into one or more other chemicals. Examples: iron and oxygen combining to make rust. vinegar and baking soda combining to make sodium acetate, carbon dioxide and water.
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List some examples of physical change. Physical change involved tearing, breaking, grinding a state of matter, changing the state of matter and dissolving a substance. ... Some examples of chemical change is burning, rusting of iron, souring of milk and decaying of food.
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A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity. Examples of chemical changes are burning, cooking, rusting, and rotting. ... The only way to reverse a chemical change is via another chemical reaction.
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In a physical change, the molecules are rearranged while their actual composition remains same. In a chemical change, the molecular composition of a substance completely changes and a new substance is formed. Some example of physical change are freezing of water, melting of wax, boiling of water, etc.
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Examples of enthalpy changes include enthalpy of combustion, enthalpy of fusion, enthalpy of vaporization, and standard enthalpy of formation.
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Examples of chemical changes are burning, cooking, rusting, and rotting. Examples of physical changes are boiling, melting, freezing, and shredding. Often, physical changes can be undone, if energy is input. The only way to reverse a chemical change is via another chemical reaction.
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17. An example of a chemical change is when water freezes. 18. When platinum is heated, then cooled to its original state, we say this is a physical change.
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['Chemical changes make new substances. Anytime a new substance is made, a chemical change takes place. ... ', 'Physical changes do not make a new substance. Physical changes come in many forms. ... ', 'Physical changes also happen when matter changes states. ... ', 'Chemical and physical changes are all around us.']
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Color. The changing of color of a substance is not necessarily an indicator of a chemical change. For example, changing the color of a metal does not change its physical properties. However, in a chemical reaction, a color change is usually an indicator that a reaction is occurring.
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Examples of physical changes are boiling, melting, freezing, and shredding. Often, physical changes can be undone, if energy is input. The only way to reverse a chemical change is via another chemical reaction.
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A good example of that is dissolving sugar in water. Once the sugar has all dissolved, you have molecules of sugar mixed in with the molecules of water. The chemical formulas at the end are the same as they were at the start, so this is a physical change.
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Boiling waterBoiling water is an example of a physical change and not a chemical change because the water vapor still has the same molecular structure as liquid water (H2O). If the bubbles were caused by the decomposition of a molecule into a gas (such as H2O →H2 and O2), then boiling would be a chemical change.
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Chemical Change. a change that produces matter with a different composition than the original matter. Chemical Property. A property of matter that describes a substance's ability to participate in chemical reactions. Flammability.
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One of the Following Does Not Happen During a Chemical Reaction. this Is: (A) Breaking of Old Chemical Bonds and Formation of New Chemical Bonds (B) Formation of New Substances with Entirely Different Properties (C) Atoms of One Element Change into Those of Another Element to Form New Products.
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A "natural" chemical change would be burning wood, cooking eggs, baking a cake and milk going sour. These changes can't be changed so therefore they are chemical changes. A natural physical change would be mixing salt or sand with water, melting or boiling water, cutting wood, and shredding paper.