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Spoiled milk smells bad because of the presence of harmful bacteria that break down the proteins and fats in the milk, producing compounds like butyric acid and hydrogen sulfide, which have strong, unpleasant odors.

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7mo ago

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Is the spoiling of milk a chemical or physical change?

The spoiling of milk is a chemical change. This is because the bacteria in the milk breaks down the proteins and fats in the milk, leading to a change in its chemical composition and properties. It cannot be reversed by physical means such as cooling or filtering.


Why does your room smell really bad?

If the odor is really bad, you likely have spoiled food or dead rodents hidden somewhere. Dirty or even moldy clothes can add to the odor, and mice sometimes crawl under clothes or other objects in the floor before dying. Pets can add to the odor, so if you have any, you need to clean up after them and wash them regularly. If your room stinks, you should clean it.


Is souring milk a physical or chemical change Why or why not?

It's a chemical change. The smell is the giveaway; a smell that wasn't there before is often an indicator of a chemical change. Also, the rate at which the milk sours can be changed by heat. For example, milk in the refrigerator is actually undergoing this souring reaction at all times, but the lower temperature inside the refrigerator slows it down so that it takes many days. But if you leave it outside the refrigerator, it will sour much more quickly - in a matter of hours. An increase in heat, therefore, quickens the reaction rate. This would not be the case in a physical change.


Why does sugar stink?

Sugar does not have a natural smell, so if it smells bad, it may be due to contamination or spoilage.


Why does burning hair smell so bad?

Burning hair smells bad because it releases sulfur compounds and other chemicals that are produced when proteins in the hair break down. These compounds have a strong and unpleasant odor that is easily detected by our sense of smell.

Related Questions

What is causes milk to sour?

Milk is sour because it is spoiled and how milk spoils is if you leave it out so long that it will get so spoiled and it will smell so funny that you will wanna take it out of your refrigerator. So that is why milk is so sour.[ IF YOU DISAGREE TO ANY OF THIS MAKE YOU AN ACCOUNT AND CORRECT ME AND I WILL SEE WHAT YOU SAY AND ADD THAT TO WHY MILK SPOILS].


Why does fish smell bad?

Fish itself has some odorless becoz of some chemical in their body.. where as when its die those are spoiled by bacteria so bad smell spreaded


Can seamoss go bad and if so, how can you tell if it has spoiled?

Yes, seamoss can go bad. You can tell if seamoss has spoiled if it has a foul smell, slimy texture, or unusual discoloration. It is important to check for these signs before consuming it to avoid any potential health risks.


Does refrigerated butter go bad, and if so, how can you tell if it has spoiled?

Yes, refrigerated butter can go bad. You can tell if butter has spoiled by checking for changes in color, texture, or smell. Spoiled butter may have a rancid or sour odor, a discolored appearance, or a slimy texture. It is best to discard butter that shows these signs of spoilage.


Does mozzarella cheese go bad, and if so, how can you tell if it has spoiled?

Yes, mozzarella cheese can go bad. You can tell if it has spoiled by checking for signs such as mold, a sour smell, or a slimy texture. It is important to discard mozzarella cheese if it shows any of these signs to avoid getting sick.


What does spoiled ham look like?

If your food smells at all bad to you then trust your nose and don't eat it. It could smell of ammonia or vinegar or sulfur. It won't smell like fresh chicken. Become familiar with the smell of your food and ingredients. The odor is usually the first clue that something is wrong.


How bad does milk smell after 2 weeks left near a radiator?

I smelt so bad i was sick it scored a 10 on the 'stinkoscale' no it smelt like sour milk cross rotten eggs what a stench!!!!


What type of cheese do mice favor the most?

Cheese is essentially milk gone bad, and most animals instinctively avoid spoiled foods. Mice have a well-developed sense of smell, so cheese's pungent odor may warn them to avoid it in favor of fresher, more wholesome foods.


How to tell if cooked steak is spoiled?

I would think so. If it is discolored it probably has gone rotten. If you are talking about dark red or black, it might just be over done. If you are talking about yellow or green with fuzz, then yes, It is spoiled. :)


How do you spoil milk?

Milk can easily be spoilt. Especially liquid milk can be spoiled by mixing with other liquids such as juice and cool-aid and also solids such as bread and snackerswhich as solid milk or milk powder may not spoil so easily


If you drink milk it will help erection of your penis?

No. Drinking milk can't cause an erection, but there might be a memory associated with the sight, smell, or taste of milk that causes an erection.


What happens when cow's milk is soured?

It isn't drinkable any more. It's spoiled, so it has to be thrown away.