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What is the diffeference between a physical and a chemical change?
A physical change is when a substance changes, but still keeps its identity. When a chemical change occurs, the substance changes its identity.
What is the term for a process that does not change the identity of a substance?
Many physical changes will not alter the identity. However, some physical changes, such as heating or cooling will result in phase changes and so the identity will be different. While ice and water are chemically the same, they are not identical forms of the substance.
A physical property of a substance can only be observed if the substance changes into a different substance?
No, a physical property DOES NOT change the identity of a substance. That would be a chemical property which DOES change the identity.
When a substance changes into a different substance a blank change has occurred?
If form changes but identity doesn't change then it is a physical change.
Physical Change?
Changes of the matter that do not change the composition of the substance.
What happens to the identity of a substance when it makes a physical change?
there is to types of change to a substance chemical and physical in a physical change the result is a mixture also most times you can change your end result into what you started with e.g.freeze-melt evaporate-condesate
Is sorting rocks by color a chemical change?
Of course not. It is a physical change. A chemical change occurs when the identity of a substance changes.
When observing a physical property of a substance changes the identity of the substance?
A physical property of a substance refers to characteristics that can be observed or measured without altering its chemical composition, such as color, boiling point, or state of matter. Changes in these properties, like melting ice into water, do not change the identity of the substance itself, as both ice and water are still H2O. In contrast, a chemical change, such as burning wood, transforms the substance into a new identity with different properties. Thus, while physical changes can alter the appearance or state, they do not change the fundamental identity of the substance.
Is mowing the a lawn physical change?
Mowing the lawn is a physical change. Cutting your hair isn't a chemical change, it's still hair, and it will grow back :) Chemical changes alter the identity of a substance, whereas physical changes do not.
What is the differences between chemical and physical changes?
chemical- changes identity of substance. some signs: bubbles, precipitate forms, color change, difference in temperature physical- does not change identity of substance. can be homogeneous or heterogeneous. meaning appearing to be the same throughout and appearing to have different parts throughout; respectively.
Is it a physical or chemical change when a substance changes form but it remains the same substance?
it would be physical change because physical change is when the substance stays the same
Is a chemical change a physical blend of two or more components?
No. A chemical change is when the chemical identity of substance or set of substances changes to a new substance or set of substances. Physically blending or mixing two components is a physical change.
