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What indicates that an exothemic chemical reaction occurs when two substances are mixed together?
Wiki User
∙ 13y ago
Exothermic reactions release heat energy, so they would produce heat (increase in temperature). This can easily be tested by touching the container with your hands, or by using a thermometer.
The opposite is an 'endothermic' reaction, which absorbs energy and feels colder.
Wiki User
∙ 13y ago
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When two substances are mixed together a chemical reaction may take place Which what characteristics indicates a high chemical reactivity for one or more of the reagents?
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Are chemical reactions a chemical change of original substances before a chemical reaction takes a place?
Substances are changed only after the beginning of a chemical reaction.
Why do substances in a chemical reaction have new properties?
Because after a chemical reaction new substances are obtained, with new properties.
Is a new substances must form is true about chemical reaction?
Yes, after a chemical reaction new substances are formed.
What are the old substances at the beginning of a reaction called?
The reactants are the substances that are at the beginning of a chemical reaction.
Is chemical energy released during a chemical reaction?
exothemic energy
How does a chemical equation show that a chemical reaction has occurred?
A chemical equation shows that chemical reaction has occurred as new substances have been formed from the reagents. A chemical equation has two sides before reaction and after reaction, if there is any change from the before reaction side to the after reaction side, it indicates that a chemical reaction has just occurred.
What is the starting substance in a chemical reaction is?
The substances you have at the beginning of a chemical reaction are called the reactants.
Is the substances formed in a chemical reaction are called reactants?
Substances formed in a chemical reaction are called products.
When two substances are mixed together a chemical reaction may take place What characteristics indicates a high chemical reactivity for one or more of the reagents?
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When two substances are mixed together a chemical reaction may take place Which what characteristics indicates a high chemical reactivity for one or more of the reagents?
all of these studyisland answer
Are chemical reactions a chemical change of original substances before a chemical reaction takes a place?
Substances are changed only after the beginning of a chemical reaction.
What is the substances you have when a chemical reaction is complete?
In a chemical reaction, two or more substances called reactants react, resulting in substances called products.
The starting substances that are evoled in a chemical reaction?
The substances evolved after a chemical reaction are called in English products and are not starting substances - the are called reactants.
What is chemical reaction of oxygen with other substances called?
The chemical reaction of oxygen with other substances is called oxidation.
Is a new substances must form is true about chemical reaction?
Yes, after a chemical reaction new substances are formed.
Why do substances in a chemical reaction have new properties?
Because after a chemical reaction new substances are obtained, with new properties.
