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elena-14-01-66 [18.8K]
3 years ago
9

What is the main function of antibodies?

Chemistry
1 answer:
katrin2010 [14]3 years ago
6 0

Answer:

The answer is (c) binding themselves to invade antigens

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In an exothermic reaction, energy is blank the surroundings.
S_A_V [24]

Answer: released to; absorbed from

- In an exothermic reaction, energy is released to the surroundings.

- In an endothermic reaction, energy is absorbed from the surroundings.

Explanation:

An exothermic reaction is a chemical reaction that occurs spontaneously and brings about the release of energy to the surroundings. Hence, the reacting vessel feels hot as the reaction proceeds.

An endothermic reaction, on the other hand, does not occur spontaneously and proceed only when energy is absorbed from the surroundings. Hence, the reacting vessel feels cold as the reaction proceeds.

5 0
2 years ago
Read 2 more answers
Which substance is a mixture?<br> table salt<br> gasoline<br> aluminum<br> carbon dioxide
GaryK [48]

Answer:

Gasoline

Explanation:

Pure Substance: are those having same type of atoms or molecules.

Compound: one or more atoms of the element combine to form a compound.

Mixture: is combination of one or more substances mix together.

Homogeneous Mixture: are those which are not distinguish by naked eye but can be separated into its components by physical means

Heterogeneous mixture: are those which can be distinguishing by naked eye and can be separated into its components by physical means.

So keeping in mind the above definitions

Table salt:

The chemical formula of table salt is NaCl and it a pure compound not mixture.

Gasoline:  

Gasoline is mixture of hydrocarbon, It contains small hydrocarbons ranging from 4 Carbon to 12 Carbon per molecule. it is a homogeneous mixture.

Aluminum:

Aluminum is a pure substance that is made up of same kind of atoms. so it is an element and not mixture. Its symbol is Al

Carbon dioxide:

Carbon dioxide is a pure compound and its chemical formula is CO₂ and not a mixture.

So, the write option is Gasoline.

6 0
3 years ago
Read 2 more answers
What is the percentage yield when 60kg of ammonia is produced from 60kg of hydrogen?
Softa [21]

Answer:

17.6%

Explanation:

%age yield is = actual yield /percentage yield ^100

3 0
3 years ago
You complete a chemical reaction and recover 79 grams of product. However, you calculate you should have recovered 104 grams of
spin [16.1K]
Percent yield is calculated using:
percent \: yield =  \frac{actual \: yield}{theoretical \: yield}   \times 100\%

Your actual yield is how much you actually had at the end of the experiment = 79g.

Your theoretical yield is how much you calculated you should have gotten in an ideal, perfect experiment = 104g.

So put those values into the equation:
percent \: yield =  \frac{79}{104}  \times 100\% = 76\%

5 0
3 years ago
10. What is the mass percentage of water in the hydrate CuSO4.5H2O?
Katena32 [7]

Answer: 36.07%

Explanation: Please see attachment for explanation

7 0
3 years ago
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