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Explain how you can tell whether a chemical reaction has taken place?
Wiki User
∙ 13y ago
A chemical change or reaction happens if new substances are formed. there may be a change in temperature so the reaction mixture may heat up or cool down. it also might change colour, give off bubbles of gas or fumes and you also might hear fizzing or a gas might explode.
Wiki User
∙ 13y ago
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What changes gives NO evidence that a chemical reaction has taken place?
Physical changes give no evidence that a chemical reaction has taken place, because no chemical reaction has taken place.
What shows changes that take place during a chemical reaction?
A chemical equation
Where the chemical reaction take place in a cell?
whan a sperm cell enter the egg cell and make a baby thats the huge chemical reaction
A chemical reaction is the change that takes place when two or more substances?
interact
Where does the chemical reaction between thyroglobulin and iodine take place?
in the lumen of the thyroid follicle
Explain how a catalyst aids chemical reaction to take place and identify the subsequent chemical changes in the reaction?
The role of a catalyst is to quicken the chemical reaction . On reacting, it subsequently appears as a product in the next step of the reaction.
Explain how wood burning in a fire place undergoes a chemical change?
Burning is an oxydation reaction so a chemical change.
What changes gives NO evidence that a chemical reaction has taken place?
Physical changes give no evidence that a chemical reaction has taken place, because no chemical reaction has taken place.
Heat is felt when a warm object is place in your hand chemical reaction?
It's a physical reaction not a chemical reaction.
What a chemical reaction mean?
A chemical reaction is; when there is a chemical change taking place from energy or shifting of molecular structure.
What chemical reaction happens to salt when you heat it?
when we heat the salt there chemical reaction is takes place
What type of reaction take place in rancidity?
chemical reaction takes place in rancidity
Were chemcal reaction takes place cell organelles?
chemical reaction takes place
What evidence is there to show that a chemical reaction has taken place when an egg is cooked?
The change in color indicates that a chemical reaction has taken place.
What take place during a chemical reaction?
During a chemical reaction the breaking of the older bonds and formation of the new bonds take place.
What chemical reaction is taking place in the green organelles in plant cells?
This chemical reaction is called photosynthesis.
What is meant by thermodynamics of a chemical reaction?
It refers to the energy changes that take place during a chemical reaction.
