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When there's a smoking hole in your lab bench. (Exothermic reactions give off heat, so a temperature rise after the reagents are mixed is usually a pretty good indication.)
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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 is a chemical reaction in which more energy is taken in than given off?
Exothermic Reaction
Why respiration is considered as an exothermic reaction?
Respiration, which put simply is the reaction of oxygen and glucose to form water anc carbon dioxide, releases energy.
What takes place in the stoma of the chloroplasts?
Dark reaction is taken place. It is the light independent reaction
Will the temperature in a reaction always go up?
Exo- means out Endo- means in. In an Exothermic reaction thermal energy is released (goes out) and in an Endothermic reaction Thermal energy is taken up, transferring into chemical energy (goes in). So, to answer your question, no, the temperature does not go up in both an exothermic and an endothermic reaction.
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 is a chemical reaction in which more energy is taken in than given off?
Exothermic Reaction
Which is more energy given off than taken in A exothermic reaction an endothermic reaction a diluted solution or a concentrated solution?
exothermic
Why respiration is considered as an exothermic reaction?
Respiration, which put simply is the reaction of oxygen and glucose to form water anc carbon dioxide, releases energy.
What is the name given to reactions which take in heat?
An endothermal (or endothermic) process is the name of the process in which heat is taken in. In an exothermal (or exothermic) process, heat is released.
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.
How can you neutralize an acid or a base?
To neutralise an acid you add the equivalent amount of base/ alkali. And for a base/ alkali you add an acid. The reaction that takes place is exothermic, when the temperature stops rising and starts to decrease you know the neutralisation has taken place.
Endothermic and exothermic reaction?
An exothermic reaction releases energy, usually to the surroundings. There is a net loss of energy from the reactants. However, exothermic reactions also need a little energy to get started, but this is less than the eventual amount given out. An endothermic reaction takes in energy, also usually from the surroundings. There is a net gain of energy into the reactions. Again, a little energy is lost, but this is hardly anything compared to the amount taken in.
What takes place in the stoma of the chloroplasts?
Dark reaction is taken place. It is the light independent reaction
Will the temperature in a reaction always go up?
Exo- means out Endo- means in. In an Exothermic reaction thermal energy is released (goes out) and in an Endothermic reaction Thermal energy is taken up, transferring into chemical energy (goes in). So, to answer your question, no, the temperature does not go up in both an exothermic and an endothermic reaction.
What is heat During the endothermic reaction?
The heat spreads to the colder substance until the two are at an equillibrium (the two objects at the end will have the same temperature)
What is different between exothermic and endothermic reactions?
If energy is released as a result of a process, an exothermic change has taken place. If a constant input of energy is required to drive a physical or chemical change, the change is described as endothermic.
