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it is an ionic and exothermic reaction i.e. when it will take place heat will be liberated

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15y ago

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Is physical or chemical reaction takes place when sodium hydroxide mixed with water?

It is a physical change. The sodium hydroxide dissolves, but it is still sodium hydroxide.


Is saltwater a chemical reaction?

Adding salt to water is not a chemical reaction, nor is it a chemical change. When salt dissolves in water, this is an example of a physical change. Although the sodium and chlorine ions separate in the water, no chemical reaction takes place.


Is mixing a chemical changing?

no, the substances that you mix must interact to form a completely new substance for a chemical change to take place. Mixing sand and salt is not a chemical change. Mixing vinegar with sodium bicarbonate will lead to the release of carbon dioxide gas. This is a chemical change.


Is it a physical or chemical change when hydrochloric acid reacts with sodium hydroxide to produce a sat water and heat?

It is a chemical change because the reactants (hydrochloric acid and sodium hydroxide) are undergoing a chemical reaction to form new substances (water and salt) with different properties. The heat produced is a sign of a chemical reaction taking place.


Is dissolving salt in water chemical or physical change?

Dissolving salt in water is an example of a physical change. Although the ions of sodium and chlorine separate when the salt dissolves, no chemical reaction takes place.


How can you tell if somthing has gone through a chemical change?

When chemical changes occur, the atoms are rearranged and the reaction is accompanied by an energy change as new products are generated. Eg of a chemical change is the reaction between sodium hydroxide and hydrogen chloride to produce sodium chloride, or common salt.


Is salt dissolves in water a physical or a chemical?

Dissolving salt in water is an example of a physical change. Although the ions of sodium and chlorine separate when the salt dissolves, no chemical reaction takes place.


If hydrochloric acid is added to sodium hydroxide the temperature increases but there is no visible change did a chemical or physical change occur?

A chemical change occurred because the reaction between hydrochloric acid and sodium hydroxide generated heat, indicating a release or absorption of energy. Even though there may not be a visible change, the temperature increase is evidence of a chemical reaction taking place.


If a piece of metal bubbles was place in acid is that a chemical change?

No, it is not a chemical change. For example, if you put gold bubbles into any single acid, no chemical change will take place.


What identifies a chemical change has taken place?

Signs that a chemical change has taken place include the formation of a gas, the formation of a precipitate, a change in temperature, and a change in color.


When cheese is cut into a slices does a chemical formula takes place.?

I assume you mean chemical "change" and the answer is no, it is a physical change that takes place.


What are facts about physical and chemical change?

Chemical changes take place on the molecular level