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Do all changes involve interaction?
No, not all changes involve interaction. Some changes can occur independently without any external influence or interaction. For example, changes in an inert object's state or changes in a closed system can happen without any interaction with the external environment.
Why changes of stat are physical changes?
Changes in state are physical changes because they involve a change in the physical appearance or state of a substance without altering its chemical composition. For example, when water changes from a liquid to a solid (freezing) or a gas (vaporization), it is still water chemically. This contrasts with chemical changes, which involve a rearrangement of atoms and result in the formation of new substances.
Are the changes in the state of matter chemical changes?
No, changes in state of matter (such as melting, freezing, boiling) are physical changes, not chemical changes. Chemical changes involve the formation of new substances with different chemical properties.
What are characteristics do all chemical changes have?
All chemical changes involve the formation of new substances with different properties. They typically involve changes in the arrangement of atoms and the breaking and forming of chemical bonds. Chemical changes are often irreversible and are accompanied by changes in energy.
Do all changes involve physical interaction?
no they don't
What are the effects of changes in matter?
Changes in matter can lead to physical or chemical changes. Physical changes involve alterations in state or appearance, such as melting or crushing. Chemical changes involve the formation of new substances through reactions, like rusting or burning. Both types of changes can impact properties like color, texture, or composition.
How are all physical changes alike?
All physical changes involve a change in the form, shape, or state of matter without altering the chemical composition of the substance. This means that the particles in the substance remain the same before and after the change, only their arrangement or state is altered.
Enthalpy changes accompanying a change of state are than those accompanying the heating of a substance at each state?
The enthalpy changes accompanying a change of state (e.g., melting, boiling) involve breaking or forming intermolecular forces, which may require more energy than simply raising the temperature of a substance at that state. This is because changes of state involve a phase transition, which requires additional energy to overcome the intermolecular forces holding the substance together.
Which of the phase changes does not involve changing a liquid into a gas?
All the rest of them.
Is reacting a physical change or chemical change?
Reacting can involve both physical changes and chemical changes. Physical changes involve alterations in the physical state of a substance without changing its chemical composition, while chemical changes involve the formation of new substances with different chemical compositions.
Does changes in a state of matter involve a physical change?
Yes, changes in state of matter involve physical changes because the substance retains its chemical composition. The change is simply a rearrangement of particles due to differences in energy levels or intermolecular forces, rather than a chemical reaction.
What changes of state would involve water absorbing energy?
From water at solid state or ice change to liquid the process is called melting. From water as solid to gas the process is called sublimation. From water as liquid to gas the process is called evaporation. All these 3 processes involve change of state and absorb heat.
