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arsen [322]
4 years ago
9

1.

Chemistry
1 answer:
guajiro [1.7K]4 years ago
3 0

Answer:

The flask would probably feel cooler than before the reaction started.

Reasoning:

Endothermic is a process or reaction accompanied by or requiring the absorption of heat

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When energy is created without oxygen, the process is called anaerobic fermentation.

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Enzymes that eventually break down the surface of bacteria are found in saliva, mucus, and tears, which act as chemical barriers against infection.

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There is no chemical and physical barrier offered by macrophages. Instead of acting as a barrier, macrophages target pathogens once they have already entered the body. Physical barriers include mucus as well as stratified squamous epithelium, whereas chemical barriers include saliva and urine.

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4 0
1 year ago
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zimovet [89]

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Explanation:

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8 0
3 years ago
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nydimaria [60]

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finding the mass percentage oven element in a compound might sound complicated, but the calculation is simple. For example, to determine the mass percentage of hydrogen in water H2O, divide the major mass of hydrogen by the total molar mass of water and then multiply the result by 100

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