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Yes, burning an old newspaper is a physical change. When the newspaper burns, it undergoes a chemical change rather than a physical one because new substances, such as ash, carbon dioxide, and water vapor, are formed as a result of the combustion process. While the physical form of the newspaper changes (from solid to gas), the key transformation is chemical, as the original material is altered at the molecular level.
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What possible physical trait may not change in humans as they grow old?
Nails
Differentiate physical and chemical change?
A physical change is reversible or temporary and a chemical change is permanent.Chemical change is a change that imply modifications in the structures of molecules; new compounds appear.Ex.: burning of coal with releasing of carbon dioxide and water.Physical changes don't imply the structure modification of the molecules but only the state of matter, form, dimensions; the chemical compound remain unchanged.Ex.: grinding of coal to be used in a thermal power unit.
What processes separates a mixture according to the chemical properties rather than the physical properties of the components of the mixture?
Burning old wooden boards to recover the nails and screws embedded in them.
Is the blackish-red stuff that forms on old ketchup bottles chemical change or physical change?
The blackish-red stuff that forms on old ketchup bottles is typically a result of oxidation and microbial growth, which indicates a chemical change. This change alters the chemical composition of the ketchup, leading to the formation of new substances. In contrast, physical changes do not involve changes in chemical identity. Therefore, this phenomenon is a chemical change.
What happens when materials undergo physical change?
Physical Change ➢ In physical change, only form or state, size, or shape changes. Example: If a piece of paper is cut up into small pieces it is still a paper. ( A physical change in the shape and size.) ➢ Does not result in a new material; thus, the new form may be changed back into the old form or state. Example: Water turns to ice and ice melting to water. (Ice and water are both H2O. The identity of the matter is not changed, just the state is being changed.) ➢ Physical change affects the appearance.
Why burning of candle is a physical and chemical change?
CHEMICAL
Is Boiling oil a physical change or a chemical change?
Physical ... it's only a state change. Cool it and it reverts to its old condition.
Is a cracker that is getting old a physical or a chemical change?
It is definitely a chemical change
How physical change are useful to people?
because you are a old me is a kid
How can you find an article in the Marco eagle newspaper 10 years ago?
You can try searching the archives of the Marco Eagle newspaper online or contact the newspaper directly. Some libraries or archives may also have physical copies of old newspapers that you can search through.
What is the significance of burning the old year in the poem analysis?
Burning the old year in the poem symbolizes letting go of the past and making way for new beginnings. It represents a fresh start and the opportunity for growth and change.
Is bleaching hair a physical change or chemical change?
when you bleach your hair it is a chemical change,because you are adding the chemical from the bleach to your hair and "you can't change it back to the old". chemical change: you can't change it back to the old and it makes a new subtance. physical change:it does not make a new subtance and it is still the same object.
What possible physical trait may not change in humans as they grow old?
Nails
Is a bleached hair a physical or a chemical change?
when you bleach your hair it is a chemical change,because you are adding the chemical from the bleach to your hair and "you can't change it back to the old". chemical change: you can't change it back to the old and it makes a new subtance. physical change:it does not make a new subtance and it is still the same object.
Differentiate physical and chemical change?
A physical change is reversible or temporary and a chemical change is permanent.Chemical change is a change that imply modifications in the structures of molecules; new compounds appear.Ex.: burning of coal with releasing of carbon dioxide and water.Physical changes don't imply the structure modification of the molecules but only the state of matter, form, dimensions; the chemical compound remain unchanged.Ex.: grinding of coal to be used in a thermal power unit.
What is cutting up an old rag a physical change or chemical change?
It is not a chemical change because after cutting the chemical composition remain unchanged.
What is a old 1945 unverse bullietin newspaper with Hitler in it worth?
what is a old 1944 universe bulletin newspaper with Hitler worth
