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When sugar is heated for a short time a thick colorless liquid substance is formed What kind of change takes place?
The change that takes place when sugar is heated to form a thick, colorless liquid substance is a physical change. This is because the molecular structure of the sugar remains the same even though its physical state has changed from solid to liquid.
What stays the same in a physical change?
The chemical nature/identity of the substance stays the same when a physical change takes place.
What is substance that takes place in a chemical reaction?
These substances are called reactants.
Which type of reaction takes place between copper sulfate and potassium iodide?
A chemical reaction. When these two substances mix together they create an entirely new substance rather than just a physical change of one original substance.
Why is a phase change like solid to liquid a physical change?
Melting, the phase change from a solid to a liquid, is considered a physical change rather than a chemical change because when the phase change takes place, the substance that was melted does not change its chemical composition, and the process could be reversed to get the original condition of the substance by freezing (liquid-solid).
A change of phase takes place at a constant?
A change of phase takes place at a constant temperature and pressure. During a change of phase, the substance absorbs or releases latent heat without a change in temperature.
When sugar is heated for a short time a thick colorless liquid substance is formed What kind of change takes place?
The change that takes place when sugar is heated to form a thick, colorless liquid substance is a physical change. This is because the molecular structure of the sugar remains the same even though its physical state has changed from solid to liquid.
What is a substance when formed two or more substances are combined and a chemical change takes place?
a compound
What stays the same in a physical change?
The chemical nature/identity of the substance stays the same when a physical change takes place.
How do the properties of the new substances compared with the properties of the original substance after a chemical change takes place?
They may be similar or totally different.
Why is freezing a physical change?
Freezing is a physical change because although change obviously takes place, what something is made of does not change when it freezes. Liquid water and ice are the same substance for example.
What kind of changes is it chemical or physical and why?
a physical change is a phase change, such as water to ice or water vapor. a chemical change takes place on a molecular level, producing a new substance.
When a chemical change takes place does the total number of atoms change?
No its does not the number of atoms stays the same because it is still the same substance just in another form.
A change of phase takes place at a constant what?
A change of phase takes place at a constant temperature.
Is a compound an example of a chemical change?
All samples of a compound have the same composition; that is a chemical reaction that takes place and a new substance is formed. So yes.
What is substance that takes place in a chemical reaction?
These substances are called reactants.
When cheese is cut into a slices does a chemical formula takes place.?
I assume you mean chemical "change" and the answer is no, it is a physical change that takes place.
