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How do you know that a chemical change took place when sodium and clorine join to form table salt?
Wiki User
∙ 14y ago
it is an ionic and exothermic reaction i.e. when it will take place heat will be liberated
Wiki User
∙ 14y ago
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What kind of change has taken place when you sharpen a pencil?
That is a physical change. The is no chemical change that takes place when you sharpen your pencil in a standard manner. I suppose if you sharpen it extremely fast, you could catch the pencil on fire, which would then be a chemical change.
What chemical reaction takes place in respiration?
NaHCO3
Example of energy transformation from chemical potential energy to thermal energy?
A log burning in a fire place.
How did Frida Kahlo change the world into a better place?
becuz she iz cool like that:)
What is the function of the needle clamp on the sewing machine?
The screw that tightens to hold the needle in place, and loosens when you want to change the needle.
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 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.
Is salt dissolved in water a 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.
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.
What kind of change is taking place if white mold growing on a strawberry?
A chemical change is 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.
Is corrosion of aluminium metal a physical change or a chemical change?
It is a chemical change. Through corrosion, a chemical reaction has taken 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
