why souring milk is a chemical change?
1. why souring milk is a chemical change?
Answer:
Souring of milk is classified as a chemical change
Bacteria,sugar are present in fresh milk.The sugar is called lactose and the harmless bacteria is called lactobacillus which uses lactose for energy and creates lactic acid as a by-product. It is the lactic acid which makes milk taste sour.
2. Milk goes sour. ⭐ or chemical change
Answer:
Chemical Change
Explanation:
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3. milk sours Physical or chemical changes
Answer:
chemical changes po
Explanation:
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4. milk turning sour is chemical change why?
Answer:
Milk goes sour due to the chemical reaction of fermentation. ... As bacteria consume the lactose, these sugar molecules undergo a chemical reaction to become transformed into lactic acid. It is the lactic acid produced that causes the milk to taste and smell bad.Explanation:
#Carry on learning5. Which of the following is an example of chemical change in the application of heat?A. boiling of waterC. souring milkB. forming a caramel from sugarD. digesting food
Answer:
D. digesting food
Explanation:
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Answer:
b.forming a caramel from sugar
6. The following are examples of chemical changes of matter EXCEPT.A. Souring Milk B. Boiling Water C. Digesting Food D. Rusting of Iron
Answer:
B po kasi pag na boil ang water nawawala ang chemical
Explanation:
I hope it help
7. ways of preventing chemical change that produce iron oxide of souring milk and digesting food
Answer:
Milk Souring
uringTherefore milk souring is known as a chemical transition or chemical change because it ends up forming a new product that is the lactic acid, hence leaving the milk sour.
Explanation:
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8. 1.mixing green and blue marbles chemical changes or physical changes? 2.tarnishes jewellery chemical or physical changes? 3.milk turns sour
Answer:
1.)Physical changes
2.)Chemical Change
3.)Chemical Change
Explanation:
9. milk turning sour is chemical change why?
Answer:
he souring of milk is a chemical reaction. Milk that is spoiled is sour, with a foul taste and odor. It can also become lumpy and curdled. Milk goes sour due to the chemical reaction of fermentation. Fermentation occurs when the sugars in the milk, called lactose, are consumed by bacteria.
Most bacteria in milk are killed in the process of pasteurization. However, some of the stronger bacteria survive and remain in the milk. As bacteria consume the lactose, these sugar molecules undergo a chemical reaction to become transformed into lactic acid. It is the lactic acid produced that causes the milk to taste and smell bad. In addition, lactic acid causes milk proteins to change their form and clump together to become curdled. This, like most chemical reactions, is an irreversible process.
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Answer:
Milk goes sour due to the chemical reaction of fermentation. ... As bacteria consume the lactose, these sugar molecules undergo a chemical reaction to become transformed into lactic acid. It is the lactic acid produced that causes the milk to taste and smell bad.
Explanation:
10. Which is the best example of a chemical change? a. melted butter b. ice c. paper mache d. sour milk
sour milk..........................
the answer is d. sour milk
11. which is a chemical change? a. boiling water b. chopping wood c. meltinh of ice cream d. souring milk
Answer:
A? HAHWJSBAJJRJSIEBEISNENE
Answer:
d souring milk becuase there it change the appearance andtaste.
12. what kind of change of course if the milk become sour a chemical change be physical change chemical active reactivity d none of the above
Answer:
a. chemical change
The taste of the milk changes. This is an indicator of chemical change.
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13. 15. Which of the following is not a chemical change?a.drying cloth b. white tablet turning brown c. souring milk d. riped mango
Answer:
b.po
Explanation:
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Answer:
b,Explanation:
15, Which of the following is not a chemical change?
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14. milk turning sour is chemical change or physical change and why?
Answer:
Chemical change
Explanation:
Because it results in the production of sour-tasting lactic acid.
15. which of the following is an example of chemical change ?a. pounding of garlic b. souring of milk c. slicing of cake d. peeling of fruits
Answer:
B. souring of milk
Explanation:
because if the milk will be sour no one can ever drink it caus if you drink it you can have a stomach ache.
Answer:
C.souring of milk
Explanation:
Chemical change requires a molecular level change to stop it from being reversed because it creates a new substance. Souring milk is a reverse process and new molecules are produced. Another example of chemical change — creating new air, bubbles, and colour changes like rust formation.
16. souring of milka.physical change b.chemical change
Answer:
B. Chemical change.
Explanation:
Because if you see the color of milk is the same but if you taste it it sour that you called chemically change.
Answer:
b. Chemical change
Explanation:
But lactic acid bacteria occur naturally on plants like grasses and can easily end up in milk. They ferment lactose at room temperature and turn it into lactic acid. More acid means more hydrogen ions, a lower pH and a sour taste.
The souring of milk is a chemical reaction. Milk that is spoiled is sour, with a foul taste and odor. It can also become lumpy and curdled.
17. what process is applied in the melting of candle, frying of fish and souring of milk that result in physical and chemical change A. Boiling B. Freezing C. Heating
Answer:
c. heating
Explanation:
the frying of fish uses heat to do so and same with the souring of milk
18. 2. Which is a chemical change?a. Boiling water b. Chopping of Woodc. Melting of Ice Cream d. Souring of Milk
Answer:
c.melting of ice cream
Answer:
b. chopping of wood
Explanation:
Beecause Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.
19. boiling wat chopping wood souring of milk crumpling cooking an burning wood rusting of iron caramelizing sugar sublimation of moth balls breaking a glass PHYSICAL CHANGE CHEMICAL CHANGE
sa physical change
1.boiling
chemical change
1.Rusting po
sana po makatulong po
20. Checkpoint Write on the blank whether each change happening to these is physical or chemical change, 1. Souring of milk 2. Slicing of bread into pieces 3. Baking of bread
1.chemical change
2.physical
3.chemical change
21. C. Directions: Identify the new product of the given chemical changes.*Chemical changes*Iron rusting*Gasoline burning*Sun tanning*Milk souring*Wood burningWhat is the new Product Form??
Answer:
Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions. The “ingredients” of a reaction are called reactants, and the end results are called products
22. 6. You bought fresh milk from the store, and it says in the label: "Keep in the refrigeratorfor storage." You forgot to put it in a refrigerator. After three days, you tasted the milk,and it turned grayish and sour. What Change in property made the milk sour?A. Physical Property. Change in temperatureB. Chemical Property. Change in temperature.C. Physical property. Change of taste and colorD. Chemical property. Change of taste and color
CHEMICAL PROPERTY
6. You bought fresh milk from the store, and it says in the label: "Keep in the refrigerator
for storage." You forgot to put it in a refrigerator. After three days, you tasted the milk,
and it turned grayish and sour. What Change in property made the milk sour?
A. Physical Property. Change in temperature
B. Chemical Property. Change in temperature.
C. Physical property. Change of taste and color
D. Chemical property. Change of taste and color
ANSWERThe answer is B. Chemical Property. Change in temperature.
Chemical, as chemicals are change resulting in the formation of new substances.
When milk turns sour, what is actually happening is that bacteria are converting the lactose sugars in milk into energy, with lactic acid as a byproduct. This is a chemical process, as new substances (lactic acid) has been formed
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23. the following materials undergo chemical change. which of these has a bad effect on environment?A. souring a milkB. ripening of fruitC.baking of breadD. water polution
Answer:Water POllution po
Explanation:Thanks po if nakatulong just comment nalang kung wrong ako
24. Jessie's milk turns sour when she leaves it in open air. Is it chemical or physical change?
Answer:
chemical change
Answer:
chemicall change
Explanation:
hope it helps
25. spoiled food ripening of fruits and souring of milk are example of chemical change
-log of wood
-vinegar going to sour
-flame got blue color
26. C. Directions: Identify the new product of the given chemical changes.New Product formedChemical changesIron rustingGasoline burningSun tanningMilk souringWood burning
[tex]{ \: ANSWER:}[/tex]
1.PHYSICAL CHANGE
2.CHEMICAL CHANGE
3.PHYSICAL CHANGE
4 CHEMICAL CHANGE
5.CHEMICAL CHANGE
27. Squeezing an orange to get juice A Physical change B. Chemical change 49. Milk turning sour A. Physical change B. Chemical change 50. Creating a table from a fallen tree A. Physical change B. Chemical change 51. Freezing chocolate covered bananas A. Physical change B. Chemical changeand why?
Answer:
48A..Physical change
49.B.Chemical change
50.A.Physical change
51.A.Physical change
Explanation:
48.Squeezing oranges is a physical change because no chemical composition of substance changes.
49.milk souring is known as a chemical transition or chemical change because it ends up forming a new product that is the lactic acid, hence leaving the milk sour.
50.making a table from wood (because only physical property of wood is changed and no new substance is formed. the properties of wood remains the same. )
51.Freezing is not a chemical reaction, but is a phase (or physical) change.
That's the answers
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28. C Write PC for physical change and for CC chemical change.1. burning paper4. pounding rocks2. souring of milk5. cutting paper3. chopping wood
Answer:
1.PC
4.PC
2.CC
5.PC
3.PC
29. Souring a piece of cake, a physical change or a chemical change?
Answer:
Chemical change
Explanation:
Souring suggests that fermentation did occur. Fermentation is a chemical process.
30. what kind of change occurs if the milk becomes sour
Answer:
Curdling
Explanation:
Milk gets sour thru the process of fermentation. You can make cheese from milk and cottage cheese from milk curds
What kind of change occurs if the milk becomes sour?Answer:
Therefore milk souring is known as a chemical transition or chemical change because it ends up forming a new product that is the lactic acid, hence leaving the milk sour.
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