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When a substance is heated, it may undergo physical changes such as melting (solid to liquid), boiling (liquid to gas), sublimation (solid to gas), or expansion when the particles move faster and spread apart. Additionally, some substances might change color, texture, or shape due to the heat affecting their molecular structure.
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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.
Write 3 differences between chemical and physical change?
Okay now here goes in a physical change no chemical reaction takes place. in chemical change chemical reactions take place. A physical change is reversible but a chemical change is not.In a physical change no new substance is formed(A+B=B) in a chemical change new substances are formed(A+B=C)
What do physical changes do?
There are many different physical changes that can take place at any given time. To know what exactly these certain physical changes mean we would need to know what the changes are.
When sugar is heated for a short time a thick colorless liquid substance is formed What kind of change takes place explain?
When sugar is heated for a short time, it undergoes a physical change called caramelization. During this process, the sugar molecules break down and recombine into a new substance without changing the chemical composition of the sugar molecules. The result is the formation of a thick, colorless liquid substance known as caramel.
A liquid changes color as it cools and becomes solid. How can you confirm the type of change that took place?
To confirm the type of change that took place, you can observe the properties of the liquid before and after cooling. A physical change is indicated if the substance can return to its original state, such as melting back into liquid when heated. Additionally, you can analyze the molecular structure using techniques like spectroscopy to determine if any chemical bonds have been altered, which would indicate a chemical change. In this case, if the substance simply solidifies without changing its chemical composition, it confirms a physical change.
Heating curve illustrates what?
When a substance is heated, a heating curve shows the changes in temperature as well as the physical state of the substance. A heating curve can chart the temperature versus the time elapsed as the changes take place.
What changes takes place when water is heated or cooled?
what changes take place when water is heated or cooled
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.
Are phase changes physical or chemical in nature?
Phase changes are physical changes in nature. They involve a change in the state of matter (solid, liquid, gas) rather than a change in the chemical composition of the substance. Heating or cooling a substance can trigger phase changes.
What changes take when water is heated or cooled?
what changes take place when water is heated or cooled
When sugar is heated for a short timea thick colorless liquid substance is formedwhat kind of change takes place?
A change in physical state occurs when sugar is heated and transforms into a thick, colorless liquid substance. This transformation from solid sugar to liquid form is a physical change, not a chemical change, as the chemical composition of the sugar remains the same.
Is water condensing a chemical change?
No, it is a Physical Change. Physical Changes are concerned with energy and states of matter. A physical change does not produce a new substance. Changes in state or phase (condensation, melting, freezing, vaporization, sublimation) are physical changes. Other examples of physical changes include crushing a can, melting ice, and breaking a bottle. Chemical changes take place on the molecular level. A Chemical Change produces a new substance. Some examples of chemical changes include combustion (burning) and rusting of a metal.
Is putting pottery in heated place a physical or chemical change?
It is a physical change
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.
Is a baking chocolate cupcakes chemical or physical?
Baking chocolate cupcakes involves both chemical and physical changes. Physical changes occur when ingredients are mixed, the batter changes texture when heated, and the cupcakes rise in the oven. Chemical changes take place when the cupcakes bake, as the ingredients react to produce new compounds and the cupcakes change color and flavor.
A heating curve shows?
When a substance is heated, a heating curve shows the changes in temperature as well as the physical state of the substance. A heating curve can chart the temperature versus the time elapsed as the changes take place.
Write 3 differences between chemical and physical change?
Okay now here goes in a physical change no chemical reaction takes place. in chemical change chemical reactions take place. A physical change is reversible but a chemical change is not.In a physical change no new substance is formed(A+B=B) in a chemical change new substances are formed(A+B=C)
