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When a chocolate bar melt in the sun is that a physical change or a chemical change?
When a chocolate bar melts in the sun, it is a physical change. This is because melting is a reversible process in which the chocolate changes from a solid to a liquid state due to the increase in temperature. No new substances are formed during this process, making it a physical change rather than a chemical change.
What else can I help you with?
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 is the heat source that melt chocolate in you pocket?
You are.
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 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
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.
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.
Is melt a chemical or physical?
Melting is a physical change because it does not involve a change in the chemical composition of the substance. When a substance melts, its molecules or atoms move apart, resulting in a change in its physical state from solid to liquid.
You place an ice cube on the sink and it begins to melt . is this a chemical reaction?
This is a physical change. Chemical changes are changes in "what things are made out of".
How does temperature affect physical properties of chocolate?
The higher the temperature the faster the chocolate will melt.
If iron is heat to 2000 degree Celsius is it a chemical reaction?
No. The iron would melt, which is a physical change.
