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A change of state occurs when a substance transitions from one state of matter (solid, liquid, gas) to another. You can tell if a change of state has occurred by observing changes in physical properties such as color, texture, temperature, or volume of the substance. Additionally, the substance may undergo a phase transition, like melting, freezing, boiling, or condensing.
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If you put water in a freezer and it turns to ice what kind of change occured to the water?
The change that occurred to the water is a physical change. In this case, the water changed from a liquid state to a solid state without altering its chemical composition.
What is a sign that a chemical change has occurred smoke broken pieces change in shape or change in state?
The production of smoke from something burning would be a sign of a chemical change. Broken pieces, change in shape, or change in state are all physical changes.
How can you tell if a reaction has occurred if the temperature or colour changes or the gas has given off?
Signs of chemical reactions may be: - Gas release - Formation of a precipitate - Change of color - Change of odor - Change of pH - Change of aspect - Change of viscosity - Change of the temperature - Visible formation of new compounds - Change of the state of the matter - A violent reaction with explosion or fire - Bubbling - Emitting a sound - Emitting a light
What observations does not indicate that a chemical change has occurred a. change of state b. formation of a precipitate c. absorption of energy d. release of a gas?
Change of state does not necessarily indicate a chemical change. It could be a physical change, such as melting or freezing, where the substance remains the same chemically. On the other hand, the formation of a precipitate, absorption of energy, and release of a gas are all indicators that a chemical change has occurred.
Is substance melts proof that a chemical change has occurred?
no unless there is a chemical change but there isn't. only a physical change has occurred
If you put water in a freezer and it turns to ice what kind of change occured to the water?
The change that occurred to the water is a physical change. In this case, the water changed from a liquid state to a solid state without altering its chemical composition.
Tell me about a time when a change occurred that you did not agree with and How did you manage your own attitude towards the change and What impact did this have?
No, i would rather not. It haunts me
How you tell if matter has undergone a chemical change or a physical change?
If a chemical change has occurred, the chemical composition has changed and new products will have formed, different from the reactants. If a physical change has occurred, the chemical composition does not change and no new products will have formed.
What is a sign that a chemical change has occurred smoke broken pieces change in shape or change in state?
The production of smoke from something burning would be a sign of a chemical change. Broken pieces, change in shape, or change in state are all physical changes.
Is it possible to tell whether a chemical change has occurred by watching atoms form new substances?
if the atoms form substances that are chemically different from the reactants, then a "chemical" change has occurred.
What change of state can you infer when you observe that the water level in a pan is lower after the boiling of water?
you can infer that evaporation has occurred
How can you tell if a reaction has occurred if the temperature or colour changes or the gas has given off?
Signs of chemical reactions may be: - Gas release - Formation of a precipitate - Change of color - Change of odor - Change of pH - Change of aspect - Change of viscosity - Change of the temperature - Visible formation of new compounds - Change of the state of the matter - A violent reaction with explosion or fire - Bubbling - Emitting a sound - Emitting a light
What observations does not indicate that a chemical change has occurred a. change of state b. formation of a precipitate c. absorption of energy d. release of a gas?
Change of state does not necessarily indicate a chemical change. It could be a physical change, such as melting or freezing, where the substance remains the same chemically. On the other hand, the formation of a precipitate, absorption of energy, and release of a gas are all indicators that a chemical change has occurred.
Is substance melts proof that a chemical change has occurred?
no unless there is a chemical change but there isn't. only a physical change has occurred
The exxon valdez spill occurred in what state?
The Exxon Valdez spill occurred in the state of Alaska. The incident occurred on March 24, 1989.
If you move from one state to another but the in the state you previously lived in owe a debt does that statute of limitations for that debt change to the limitations of the state you move to?
No, the SOL is based on the state where the debt occurred. Moving to another state makes no difference.
Which observation does not indicate that a chemical reaction has occured?
A change in state, such as boiling or melting, does not always indicate a chemical reaction has occurred. It could be a physical change.
