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When a chocolate bar melts in the sun a physical or chemical change?
When a chocolate bar melts in the sun, it is a physical change. This is because the chocolate undergoes a phase change from a solid to a liquid without changing its chemical composition.
What are examples of evaperation?
Examples of evaporation include a wet towel drying in the sun, a puddle of water disappearing on a hot day, and the process of water turning into steam when heated in a kettle.
Is a crayon melting in the sun a physical or chemical?
Physical. It is still crayon, and the change can be undone by cooling it until it hardens.
Side walk is warmed by the heat of the sun physical or chemical?
The sidewalk being warmed by the heat of the sun is a physical process. The sun's rays transfer heat energy to the sidewalk through radiation, causing the molecules in the sidewalk to vibrate more rapidly and increase in temperature. This is a physical change as no new substances are being formed in this process.
Is the crayon melting in the sun is physical or chemical change?
The crayon melting in the sun is a physical change because only its state changes from solid to liquid without forming any new substances.
Is drying fish physical change?
Drying (involving only the water evaporation) is a physical change.
Is a grape drying in the sun a chemical or physical change?
It is a chemical change. Fermentation causes bonds to break within a compound and new bonds form thus chemically changing the initial 'reactant'.
Is a puddle drying up in the sun a chemical or physical change?
It is a physical change, because it is still H20 when it evaporates and turns into vapor.
What is sun drying air drying?
what are the example of sun and air drying
Why it is not allowed to dry the soil samples under the sun?
Drying soil samples under the sun can lead to uneven drying, which can affect the accuracy of test results. The sun's heat can also alter the soil's chemical and physical properties. Controlled drying methods, such as using an oven or air-drying in a shaded area, are preferred to ensure consistent and reliable results.
When a chocolate bar melts in the sun a physical or chemical change?
When a chocolate bar melts in the sun, it is a physical change. This is because the chocolate undergoes a phase change from a solid to a liquid without changing its chemical composition.
What are examples of evaperation?
Examples of evaporation include a wet towel drying in the sun, a puddle of water disappearing on a hot day, and the process of water turning into steam when heated in a kettle.
What are the three basic methods of drying?
Sun drying,Heat drying,
Is heat emitted from the sun a physical change?
No. It is a nuclear change.
Is a crayon melting in the sun a physical or chemical?
Physical. It is still crayon, and the change can be undone by cooling it until it hardens.
Is warming up in the sun a physical or chemical change?
It is a chemical change, because the sun converts hydrogen into helium to create heat and light.
Why is photosynthesis a physical change?
Light from the Sun provides life.
