what chemical changes occur at home?
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well there's cooking food, unclogging a drain, cleaning the floor, and I'll leave the rest to your imagination
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A chemical property is a property of a substance that becomes apparent during a chemical reaction, and can only be observed by changing the substance's chemical identity.
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Different chemical composition, one has a reaction the other doesn't..☺
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If heat has been added to an element, it may make a chemical reaction.  If some object's physical properties due to heat or cooling, a chemical reaction may have occurred.  For example, a fire burning wood creates a chemical reaction in the wood.
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Well basically its mercury\nsome household thermometers contain alcohol with a red dye added.  used as an alternative   to mercury in it ,these are safer and easy to read.
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A general answer is Chemicals\nCertain chemicals trigger certain chemicals in your body
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Probably you are having a reaction to some chemical or preservative used in making it.
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Too many chemicals in food chain and atmosphere. PEsticides, stress, later childbirth, teflon on cooking utensils, chenoble, fluoride, pension doubts, tv, microwaves, bad vides, mobile phones, life!
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A physical change is when a substance undergoes a change in form, but is still the same chemical composition. Some examples of physical changes include change of state (liquid water to steam), size (cutting paper in half), shape (folding paper), dissolving (ice tea crystals in water), and mixing (red and white paint). In any of the above situations, the chemical make up of the original stays the same. (Eg. liquid water is the same as steam or ice).
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it usually creates an acid  like HCl, HF, H2SO4
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That is why I only trust on tap water from home with a system that would remove most or allchemicals and metals in the water. Others have bacteria and metals that make you become poisoned, damage your nerves or make you ill.
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During a chemical reaction, existing bonds are broken, atoms are rearranged and new bonds are formed.
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common home-use acids include vinegar (acetic acid), citric acid (Vitamin C and citrus juices), boric acid (to kill bugs), and acetysalicylic acid (aspirin!).
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While cooking,\n1.water get boils and changes to water vapour.\n2.the proteins etc gets heated.\n3.If the container is  closed,water vapour cools and changes to water
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The physical quantitative changes in response of a chemical change is Smetry.
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several things.  batteries....cleaning agents....emulsifiers..mix it with Nitric acid....you get Nitro Glycerin....which....you can't do at home.  hahhahaha
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primary,secondary, tertiary,quaternary.\n\na change in ph results in a change in the concentration of OH and HYDROGEN ions.the high content of hydrogen ions make proteins to coagulate