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Answered
2016-10-12 12:42:28
2016-10-12 12:42:28

Physical Changes

  • Change of state (such as from solid to liquid or from gas to liquid)
    • Specific examples of state change include water freezing, alcohol evaporating and dry ice (solid carbon dioxide) subliming
  • Absorption of water into a towel
  • Crumpling a piece of paper
  • Pulling copper into a thin wire - a change of shape, but not a change of composition
  • Cutting a material such as wood
  • Tearing a piece of tin foil
  • Breaking glass
  • Deflating a Basketball
  • Mixing different solids (such as solid sulfur and iron filings)
  • Inflating a volleyball
  • Cloud forming in the sky

Chemical changes

  • Burning a log of wood
  • Mixing an acid with a base, producing water and a salt.
  • Photosynthesis - a process in which carbon dioxide and water are changed into sugars by plants.
  • Cracking heavy hydrocarbons to create lighter hydrocarbons (part of the process of refining oil).
  • Cooking examples: popcorn, cake, pancakes, and eggs
  • Oxidation examples: rust or tarnishing
  • Combustion
  • Mixing chemicals
  • Rotting of fruit
  • Cooking rice
  • Explosion of fireworks
  • Tarnishing silver
  • Lighting a match
  • Chewing/digesting food
  • Rusting nail
  • Burning gas in a stove
  • Oxidizing food for energy
  • Roasting a marshmallow
  • Adding food coloring to icing
  • Frying an egg
  • Burning a magnesium strip

The following can indicate that a chemical change took place, although this evidence is not conclusive:

  • Change of color (for example, silver to reddish-brown when iron rusts)
  • Change in temperature or energy, such as the production (exothermic) or loss (endothermic) of heat
  • Change of form (for example, burning paper)
  • Light, heat, or sound is given off
  • Formation of gases, often appearing as bubbles
  • Formation of precipitate (insoluble particles)
  • The decomposition of organic matter (for example, rotting food)
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MacApps
Answered
2020-03-12 07:47:59
2020-03-12 07:47:59

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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Answers
Answered
2020-11-03 01:44:05
2020-11-03 01:44:05

The general properties of matter such as color, density, hardness, are examples of physical properties. Properties that describe how a substance changes into a completely different substance are called chemical properties. Flammability and corrosion/oxidation resistance are examples of chemical properties.

EXAMPLE: Examples of chemical changes are burning, cooking, rusting, and rotting. Examples of physical changes are boiling, melting, freezing, and shredding.

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Dr. M.S khan Science Tutor
Answered
2020-07-08 21:28:22
2020-07-08 21:28:22

Burning of lpg example of both physical and chemical changes. Because change of state from liquid to gas is a physical change while formation of carbon dioxide is a chemical changes.

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Anonymous
Answered
2020-08-08 23:48:35
2020-08-08 23:48:35

A banana ripening in the air

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Related Questions


Examples of chemical changes: * Burning of paper * Rusting of iron Examples of physical reactions: * Melting of ice * Melting of wax


Being ductile, malleable, freezing, melting are some examples of physical changes of a substance. Physical changes do not form a new substance while chemical changes do. Examples of chemical changes are a rusting nail and combustion.



Chemical : cooking (not heating [especially in the microwave]). Physical : making ice cubes.


No, it is a Physical Change. Physical Changes are concerned with energy and states of matter. A physical change does not produce a new substance. Changes in state or phase (condensation, melting, freezing, vaporization, sublimation) are physical changes. Other examples of physical changes include crushing a can, melting ice, and breaking a bottle. Chemical changes take place on the molecular level. A Chemical Change produces a new substance. Some examples of chemical changes include combustion (burning) and rusting of a metal.


A physical change is a change that does not change the chemical makeup of the substance. This can be crushing, tearing, or a phase change for example. A chemical change changes the chemical makeup of the substance. Some examples of this are rusting, combustion, or digestion.


Melting, boiling, and dissolving are some examples of physical changes.


chemical- the outcome of something**- fire, aka combustability. physical- something you hear, smell, taste, etc.- the "boom" **not sure. (:


physical: play with a clay and change the shape of the clay. tear a paper chemical: while doing brush, a chemical reaction is taking place bursting crackers


A physical change is a change in chemical composition. A physical change is a change where chemical composition is not altered. Not all chemical changes are accompanied by a physical change, but some are. The same is true for the reverse.


physical examples are examples of thing or changes or transformations which you can see with you eyes or hold with your hands.



No. Many physical changes are irreversible. Some examples are sawing a tree into boards, and shredding paper.


the physical change is -the shape of the candle changes,some of the wax becomes liquid to solid. chemical change-the wick is burned


what are some few examples of a chemical change


Some examples: Physical changes, wind and water errosion changes the shapes of mountains and valleys chemical changes, heat from volcanos can melt and change rocks and things when it hits it during an eruption There are many others but this gets you the idea to think up some more of your own


Synthesis, decomposition, combustion, and oxidation are some examples of chemical changes (reactions) of matter.


Physical change:the change in which no new substance only undergoes change in its shape appearance or states is formed known as physical change.Examples: freezing of water, tearing a paper, etc.


Odor, precipitate forms, color change. these are not physical changes these are chemical changes


Boiling is a physical process. But at high temperature it is probable that some chemical changes occur in potatoes.


Physical - Breaking of glass Boiling of water Melting of ice Cutting of vegetables Chemical - Burning of paper Cooking of food Rusting of iron Souring milk


That is what I wanted to know, this is what i think? Some Physical changes: -You can shape lead -It dislovels Some Chemical changes: -It does NOT burn -It turns into Lead Oxide Those are some but I need help with the rest... and takers? This might also help you... Phyical-You do the change. Chemical-It changes it's self.


It changes properties.Physical Changes:Physical changes are changes in the appearance but not in the chemical properties. Some physical changes can be undone so the item can be put back to almost its past form.Chemical Changes:Chemical changes are the changes in chemical properties. Chemical changes also change in appearance and/or leave behind traces to prove that a chemical change occurred. Chemical changes create a new substance when they happen, e.g., cooking an egg. Chemical changes cannot be undone as the molecules, patterns and properties have been changed.How to tell them apart:The way to tell the difference between chemical and physical changes is by the changes that it went through. There may be clues that a chemical change appeared because of sound, light, gas production or an odour. A physical change does not involve any of these.


Some examples of physical changes: * The change of a system from fluid into gas. (Solid into fluids, etc... are also possible) * Deflection of light (optics). * Gravitational force * Magnetism (compass comes to mind) * ... Chemical changes: * Sour rain * Rusty iron (oxidation) * A lot of industrial processes are based om chemical reactions, such as the production of soap. * ... Can someone verify this answer? I'm not a native English speaker, so I might've made some mistakes.


It can be either. Some exothermic processes, such as combustion, are chemical changes while others, such as condensation, are physical.



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