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What chemical reaction takes up heat but the surroundings become cooler?
Wiki User
∙ 14y ago
any reaction that takes up heat cools the surrounding and are thus called ENDOTHERMIC reactions.
ex: - thermal decomposition
in these reaction a compound takes up heat from the environment to break down into other substances.
ex: - CaCO3 ==> CaO + CO2
Wiki User
∙ 14y ago
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Why does a change in teperature indicate that a change reaction may have occured?
Chemical reactions that involve bond-breaking tend to absorb energy from the surroundings, making the surroundings cooler. Chemical reactions that involve making bonds release energy, which makes the surroundings hotter. An example of a temperature change in a chemical reaction is when a burning fire produces heat.
If a gas condenses to liquid will it make its surroundings warmer or cooler?
Much warmer.
Is sparkler burning endothermic or exothermic?
Endothermic reactions take in heat from the surroundings (and make it cooler), exothermic reactions give out heat to the surroundings making it hotter. Get too close to a sparkler and you'll find it is very hot! This is because it is an exothermic reaction.
What will happen when you drop an effervescent tablet to 56 degree water?
Carbon dioxide gas will be produced. There will be a slight temperature change. As I recall, the reaction is slightly endothermic. If that is the case, depending on the chemical reaction, the water will get slightly cooler.
What are sunspots really?
Sunspots are parts of the Sun that are about 1200 degrees centigrade cooler than the surroundings.
Why does a change in teperature indicate that a change reaction may have occured?
Chemical reactions that involve bond-breaking tend to absorb energy from the surroundings, making the surroundings cooler. Chemical reactions that involve making bonds release energy, which makes the surroundings hotter. An example of a temperature change in a chemical reaction is when a burning fire produces heat.
When propane reacts with oxygen does the surroundings area become warmer or cooler?
warmer
Why do some areas of the photosphere become cooler than surroundings areas?
because of you
Are sunspots hotter than the surroundings?
No, they are cooler.
What are dark areas cooler than their surroundings?
sunspot
Chemical reactions that absorb more energy than they release are called?
It's an endothermic reaction. When more energy is absorbed than released, it has to be absorbed from surroundings. That means the surroundings lose heat as energy is absorbed from them to complete the reaction. This translates to a cooler feeling around the reaction. If you're holding a beaker with an endothermic reaction going on inside it, your hand will feel cool because the reaction is actually absorbing energy from you. An example of an endothermic reaction is combining vinegar and baking soda.
What kind of chemical reaction is hand sanitizer?
The evaporation of hand sanitizer is an endothermic reaction. This phase change, from liquid to vapor requires heat and the alcohol takes the heat from your hand to evaporate. Therefore you feel cooler. It is a physical change, not a chemical change.
When the products of a reaction are cooler than the reactions?
The reaction is endothermic
Why do sunspots appear to be darker than surroundings?
It's because they're cooler.
If a gas condenses to liquid will it make its surroundings warmer or cooler?
Much warmer.
Is sparkler burning endothermic or exothermic?
Endothermic reactions take in heat from the surroundings (and make it cooler), exothermic reactions give out heat to the surroundings making it hotter. Get too close to a sparkler and you'll find it is very hot! This is because it is an exothermic reaction.
What will happen when you drop an effervescent tablet to 56 degree water?
Carbon dioxide gas will be produced. There will be a slight temperature change. As I recall, the reaction is slightly endothermic. If that is the case, depending on the chemical reaction, the water will get slightly cooler.
