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Charra [1.4K]
3 years ago
13

Chemistry ques class 10 plz answer it plzzzpzzzzx solve it

Chemistry
1 answer:
weqwewe [10]3 years ago
7 0

Fe2O3 + 2Al => Al2O3 + 2Fe↓

reaction of changing.

In this type of reaction one element or group of elements from one substance is changed with a single element.

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Which of the following are medical applications of radiation? Select all that apply. cancer therapy detect and locate cancer gen
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Answer:

The correct answer is cancer therapy, genetic engineering, and detecting thyroid malfunction.

Explanation:

There are numerous applications of radiation in medicine. The most well-known is the use of X-rays. Other than that radiations are also used in the treatment of cancer known as cancer therapy. It is also used in nuclear medicine therapy like the application of radioactive iodine in the treatment of thyroid issues like thyroid cancer. Radiation also has an application in genetic engineering that comprises the production of modifications in the hereditary units of prevailing animals and plants.

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4 years ago
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Citric acid, also known as vitamin C, is a triprotic acid with the formula H3C6H5O7. The pKa values are 3.13, 4.76, and 6.40. Wh
Ronch [10]

Answer:

pH = 5.58

Explanation:

Given that :

Citric acid  is a triprotic acid with the formula H_3C_6H_5O_7 . Tripotic acids are acids that have the tendency to yield three protons per molecule during the phases of dissociation, therefore they have three pka.

For Citric acid; the pka values are:

pKa _1 = 3.13\\pKa_2 = 4.76\\pKa_3 = 6.40

So, the pH of sodiummonohydrogencitrate with the chemical formula Na_2HC_6H_5O_7 which can act as an acid and a base (i.e it is said to be amphoteric) can be calculated as :

pH = \frac{pKa_2+pKa_3}{2}

pH = \frac{4.76+6.40}{2}

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Therefore, the approximate pH of a solution of sodium monohydrogencitrate = 5.58

5 0
3 years ago
Anybody good at chemistry that is willing to help?? If you could that'd be greatly appreciated!
serious [3.7K]

Answer:

The least similar to a real gas found in the environment would be B.

Explanation:

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Use complete sentences to explain how the mass of hydrogen is conserved during cellular respiration.
Ber [7]

Answer:

Explanation:

The mass of hydrogen is conserved during cellular respiration as it follows the Law of Conservation of Matter.

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