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Now that's strange. Most of the plants in my garden are green and they are all exposed to air.

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15y ago

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How long does it take for blood to turn brown after being exposed to air?

When blood is exposed to air, it typically takes about 5-10 minutes for it to turn brown due to the oxidation of hemoglobin.


When do apples turn brown?

when cut and exposed to air. lemon prevents browning. when extremely ripe they turn brown.


What is an hypothesis for cutting an apple?

Hypothesis 1: When you disturb the skin of an apple by cutting the apple into half, the exposed area will turn brown due to exposure to air.Hypothesis 2: If you snugly wrap or cover the exposed area of an apple after cutting it (disturbing the skin), you can slow down how fast the inside turns brown. Hypothesis 3: If you remove all of the skin of an apple and let it sit in the air, the outside will turn brown but the inside will not turn brown at the same rate. Hypothesis 4: If you remove all the skin of an apple AND slice the whole apple into pieces, all sides exposed to air will turn brown; if some slices are thicker, the inside will turn brown more slowly than the exposed outside areas.


Why did my steak turn brown in the freezer?

When meat is exposed to air in the freezer, it can undergo a process called oxidation, which causes it to turn brown. This is a natural reaction that occurs when the meat's proteins react with oxygen.


Why does blood turn brown?

Blood turns brown when it is exposed to air for a period of time because the iron in the hemoglobin molecules oxidizes, causing the blood to change color.


Why does a peeled banana turn brown?

Because they rot quicker. There's a greater surface area , both the inside and the outside , that is exposed to the air .


Why should apple not be peeled?

An apple should not be peeled because it will turn brown when the flesh is exposed to the air this can be prevented with citric acid (lemon juice)


Why does broccoli turn brown?

Broccoli turns brown when exposed to air because of a chemical reaction called oxidation. This reaction causes the enzymes in the broccoli to break down, leading to a change in color.


Why does lemon juice save an apple?

When exposed to air, apples turn brown due to oxidation. Lemon juice is rich in vitamin C, which is a natural antioxidant, and stops the oxidation process that turns apples brown when exposed to air. It also lowers the pH (making it more acidic) which is hostile to some of the common microorganisms.


Why do iron objects turn reddish-brown when exposed to air?

you must have seen if you leave a bolt out in the rain , areddish brown layer is deposited on it's surface after few days. it is called rust.iron reacts with oxygen of the air ,in the presence of moisture,to form a substance called iron oxide which we called rust.


Why did my ground beef turn brown?

Ground beef turns brown due to a process called oxidation, where the meat's myoglobin reacts with oxygen in the air. This is a natural occurrence and does not necessarily mean the meat is spoiled, but it is a sign that it has been exposed to air for some time.


How do you keep sliced potatoes from turning brown?

Yes it should. Potatoes turn brown when exposed to air. Covering them with any liquid should keep them from turning brown.