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I know only that laughter involve endorphins.
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What is meant by thermodynamics of a chemical reaction?
It refers to the energy changes that take place during a chemical reaction.
When chemical change takes place the total number of atoms changes?
False.
Describe the changes that take place when a match burns Are these changes physical or chemical changes?
physical, there is nothing going on but friction, which causes heat, which causes fire.All three are physical.
Is chemical change causes to the earth?
Chemical changes can have both positive and negative effects on the Earth. Some chemical changes, like natural chemical reactions in the environment, are a normal part of the Earth's ecosystem. However, human-induced chemical changes, such as pollution and industrial waste, can have detrimental effects on the environment, causing air and water pollution, habitat destruction, and negative impacts on wildlife and human health.
Describe three changes in appearance which show that a chemical reaction is taking place?
The colour, the temperature and formation of gas
Do chemical changes take place when a mixture is made?
No!chemical changes do not take place when a mixture is made.The constituent substances of the mixture retain their own chemical composition.Thus only physical changes take place.
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 chemical changes take place in body and brain during dream?
The main chemical change in the brain during dreams is most simply the electrical activity. As the synapses responsible for visual and auditory stimulation are used during a dream, the electrical energy increases.
Why are you happy when you laugh?
Laughing is a phenomenon which takes place when you are happy. All of these emotions are controlled by our brain.
What shows changes that take place during a chemical reaction?
A chemical equation
You place an ice cube on the sink and it begins to melt . is this a chemical reaction?
This is a physical change. Chemical changes are changes in "what things are made out of".
What energy changes take place in a car engine?
chemical
What changes take place in copra during storage?
chemical
What is the chemical that causes changes in food as digestion takes place?
the chemical is HCL(hydroclorid acid)
What chemical changes take place as food is being digested?
ewan
What are facts about change?
Chemical changes take place on the molecular level
What is meant by thermodynamics of a chemical reaction?
It refers to the energy changes that take place during a chemical reaction.
