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Which of the following forms a new substance melting freezing evaporating burning?
Burning chemically alters a substance, creating different / new substances as a result. Melting, freezing, and evaporating are all different phases of the same substance.
Do freezing forms a new substance?
No. Freezing represents a physical change from the liquid to the solid state. The composition of the substance does not change.
Is an ice cube physical change?
Yes ,it is physical change because anything that forms a new substance is called physical change Yes, BUT, a MELTING ice cube would be a chemical change.
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.
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 true that if a physical change that occurs when a substance changes composition by forming one or more new substances?
No, that statement is incorrect. A physical change does not involve changing the composition of a substance or forming new substances. It only alters the physical state or appearance of a substance without changing its chemical composition. When a substance changes composition and forms new substances, it is considered a chemical change.
Does a phsical change or chemical change affect the matter in an object?
A physical change is reversible and does not affect the composition of a substance. On the other hand, chemical change is irreversible and permanent. A substance undergoing a chemical change forms a new substance which has different composition than the original substance.
What is a change that alters a substance without changing it into another 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.
How powdering of sugar is a physical change?
no, powdering of sugar is a physical change as it does not forms into a new substance
What are the three physical forms in which a substance can exist?
They are the three states of matter.SolidLiquidGas
Are new substances formed in a physical?
No, new substances are not formed in a physical change. A physical change is a change in the form or appearance of a substance without changing its chemical composition.
What substance changes during reactions between hydrogen peroxide and liver?
The substance that changes is the hydrogen peroxide. After it reacts, it forms bubbles of oxygen and water.
