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When a chocolate bar melt in the sun is that a physical change or a chemical change?
Wiki User
∙ 7y ago
Physical, Since only the property of the chocolate didn't change, after it melted, it still is chocolate
Wiki User
∙ 14y ago
Wiki User
∙ 7y agoIt's a physical change... the chemical compostion remains the same.
Wiki User
∙ 7y agoIt is primarily a physical change, from a semi-solid frozen state to a liquid state. (When ice cream is exposed to high heat, other changes may occur that are chemical.)
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Is Stomach acid dissolving pizza a physical or chemical change?
There are some chemical aspects:base is made from flour and yeast,so the reaction between them is a chemical change.The cooking of the pizza is also a chemical reaction, because it cannot be undone.There are also some physical aspects, e.g.Making the doughgrating the cheesemelting the cheese
What occurs when energy is added or taken away?
When energy is added,solid will melt into liquid or liquid will change into gas. (When energy is added it gains heat).When energy is removed, the liquid will turn into solid or the gas will turn into liquid. (When energy is removed the heat will lose).
What is the heat source that melt chocolate in you pocket?
You are.
What are the three types of a physical change?
transition phases from solid to liquid to gas.
How do you classify the difference between a physical and chemical change?
Physical changes occur when objects or substances undergo a change that does not change their chemical composition. A physical change involves a change in physical properties. Examples of physical properties include melting, transition to a gas, change of strength, change of durability, changes to crystal form, textural change, shape, size, color, volume and density.
When salt melt is a chemical change or a physical change?
It's a physical change.
Is melt lead chemical or physical change?
Physical. Melting is always a physical change.
Is something that burns easily a physical or chemical change?
If you burn something it is a chemical change, however if you melt of boil it, it is a physical change.
When a ice cube melt is that a chemical property?
no that is a physical property change, not a chemical property.
Is a piece of ice melt and reacts with sodium a chemical or physical change?
It's physical
Is the melting of ice a chemical change?
no it is not it is a physical change because you add heat energy to melt it
If the melting of water is physical or chemical change?
physical Water cannot melt because it is a liquid. However, a snowflake or an icicle can melt because they are solid states of water. You must understand that water can be in any one of three PHYSICAL states, liquid, solid or vapor ( a gas ). Changing physical states is not a chemical change, but a direct result of heat or cold application.
When plastic is made is it a physical or chemical change and why?
it is a chemical change and i think maybe it is because you use heat to melt it and metal to shape it.
What does it mean when there is physical change?
A physical change is one where no new substance is produced. Melting is an example of a physical change. When you melt iron, you get liquid iron, it's still the same chemical substance. If you melt copper, you get liquid copper, not liquid iron.
What is a physical change of matter?
A physical change in matter occurs when the shape or form of matter changes, but there is no chemical reaction. If someone were to melt a sugar cube, that would be an example of a physical change.
Steam is sometimes used to melt ice Is this change physical or chemical?
Physical. Steam, ice, and water are all H2O.
Is a snowman a chemical change?
No not ia any way
