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Is the principle that the amount of a physical substance remains the same even if its physical appearance changes?
The principle behind the statement is the law of conservation of energy, which states that;
"Energy can neither be created nor be destroyed. It can only be transformed from one form to the other."
Hence, irrespective of being a physical or a chemical change, total amount of energy in the initial stage is always equal to the total amount of energy after the change.
What else can I help you with?
What can indicate a physical or chemical change?
Physical changes can be indicated by changes in appearance, texture, size, or state of matter without altering the chemical composition. Chemical changes, on the other hand, can be indicated by the formation of new substances, changes in color, temperature, odor, or the production of gas.
Is a change that alters the form of a substance without changing it into another substance is called what?
A change that alters the form of a substance without changing it into another substance is called a physical change. This type of change does not involve a change in the chemical composition of the substance, only its physical appearance. Examples include changes in state (solid to liquid) or changes in shape (cutting or crushing).
Changes that do not alter the nature of a substance?
Physical changes do not alter the chemical composition of a substance, only its physical appearance or state. Examples include changes in shape, size, phase (solid, liquid, gas), or state of matter (melting, freezing, dissolving).
Is it true a physical change never alters the form or appearance of a substance?
No, a physical change can alter the form or appearance of a substance without changing its chemical composition. For example, melting ice changes its form from solid to liquid without altering its chemical composition.
What is one major difference in a physical change and a chemical change is?
Physical change, changes the appearance or the surface. Chemical change, changes the minerals inside the object. Physical deals with the appearance and the surface. Chemical changes the structure of the minerals inside the object.
In a physical change a substance changes its but not its identity.?
Appearance
Are reversible changes and physical changes the same?
Reversible changes and physical changes are not exactly the same. Reversible changes can be undone and the original substance can be recovered, while physical changes alter the appearance or state of a substance without changing its chemical composition. Physical changes are usually reversible, but not all reversible changes are physical changes.
Is an apple turning brown physical change?
It is both physical and chemical change as it changes its appearance , and it results in a new substance also
Physical changes in a substance results in?
Physical changes in a substance result in
Why are most physical changes reversable?
Most physical changes are reversible because they involve only changes in the physical state or appearance of a substance, rather than its chemical composition. Reversible changes usually involve processes like melting, freezing, dissolving, or changes in shape, which can be easily reversed by applying the appropriate conditions to change the substance back to its original state.
What happens to a substance in physical change?
it means figure it out yourself!
When the physical form of substance changes without changing its composition?
This process is known as a physical change. It involves a change in the state or appearance of a substance but does not result in the formation of a new substance. Examples of physical changes include melting ice, boiling water, and breaking a glass bottle. The chemical composition of the substance remains the same throughout the physical change.
Can physical change be measured?
Yes. Physical changes only cause a substance to change in the appearance. You could measure if it grew in size, if it changed color, the amount of components the substance now contains after the physical change
What can indicate a physical or chemical change?
Physical changes can be indicated by changes in appearance, texture, size, or state of matter without altering the chemical composition. Chemical changes, on the other hand, can be indicated by the formation of new substances, changes in color, temperature, odor, or the production of gas.
What is the term that means the knowledge that quantity is unrelated to the arrangement and physical appearance of objects?
That term is "conservation." Conservation is the understanding that certain properties of objects remain the same despite changes in their physical appearance or arrangement.
What is always involved when physical or chemical changes occur in matter?
When physical changes occur in matter, the substance's state or appearance changes without altering its chemical composition. In contrast, chemical changes involve a modification in the substance's chemical composition, resulting in the formation of new substances.
Is a change that alters the form of a substance without changing it into another substance is called what?
A change that alters the form of a substance without changing it into another substance is called a physical change. This type of change does not involve a change in the chemical composition of the substance, only its physical appearance. Examples include changes in state (solid to liquid) or changes in shape (cutting or crushing).
