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Matter that undergoes a physical change has the same chemical make up as the product. For example, when ice melts, the liquid water and ice are still water with the formula H2O. In a chemical change, matter does undergo a change, so that it is no longer the same substance that you started with. For example, magnesium plus hydrochloric acid react to produce the products magnesium chloride and hydrogen gas. So the products are completely different from the reactants.
Wiki User
∙ 12y ago
Wiki User
∙ 10y agoThe chemical reaction change the nature of the molecule (the chemical formula).
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When ice melts is it a physical change or a chemical change?
It is a physical change. There is no chemical reaction whatsoever.
Is reaction with acid a physical or chemical property?
A physical reaction is when no new substances are formed, there is a change of state eg ice melting to a liquid. A chemical change is when the reaction forms a new substance. eg gas bubbles. An acid reaction can be both. You need to look at the reaction taking place, look for change of state (physical) or any colour change or gas bubbles (chemical).
Is adding antifreeze to your radiator a chemical or physical change?
It is a physical change because its composition does not change. There is no chemical reaction when you pour it from one container to another.
Reaction of copper and heat is physical change or chemical change?
If it is just heated, the reaction is physical. If there is burning in the process, than the state of the copper will change, making it a chemical reaction.
What are the signs of physical change from a chemical change?
Signs of physical change - Change in appearance,taste,display of substance Signs of chemical change- Change in chemical reaction
When ice melts is it a physical change or a chemical change?
It is a physical change. There is no chemical reaction whatsoever.
Is dissolving a physical or chemical reaction?
a physical reaction for the chemical structure is not changing.
What is made from a chemical reaction?
In a chemical reaction something new is created. A chemical change is inreversible where as a physical change is. In a physical change nothing new is formed.
Is water a chemical reaction or a physical reaction?
Water is not a reaction at all. If you mean to ask if a state change in water is chemical or physical, it is physical.
Is reaction with acid a physical or chemical property?
A physical reaction is when no new substances are formed, there is a change of state eg ice melting to a liquid. A chemical change is when the reaction forms a new substance. eg gas bubbles. An acid reaction can be both. You need to look at the reaction taking place, look for change of state (physical) or any colour change or gas bubbles (chemical).
What is chemical reaction physical reaction?
A physical change is one in which the chemical composition of the substance does not change. A chemical change is one in which new products are formed with their own unique chemical compositions and properties.
Is a heating process onto carbon dioxide a chemical reaction or a physical reaction?
physical reaction, because there is no change in its chemical composition.
Is adding antifreeze to your radiator a chemical or physical change?
It is a physical change because its composition does not change. There is no chemical reaction when you pour it from one container to another.
Is oxidizing Mercury physical or chemical change?
Both. A chemical reaction occurs & a physical change is noticeable.
Is an indicator's reaction in acids and bases a chemical or physical change?
That is a chemical change.
Is cesium reacting with water a physical change?
This is a chemical reaction, a chemical change.
Is Vinegar And backing soda reaction a physical or Chemical change?
Chemical change
