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pogonyaev
3 years ago
14

PLEASE HELP ASAP!!! science

Chemistry
2 answers:
Ksju [112]3 years ago
8 0

Answer:

It's the oesophagus.

Explanation:

The worm digestive system consists of the pharynx, the esophagus, the crop, the intestine and the gizzard. The oesophagus is not mentioned. Thus, it's not part of the worm digestive system.

stealth61 [152]3 years ago
7 0

Answer:

Your correct answer is The last one: Oesophagaus!

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We get 1700 Tonnes of Ammonia every day. How many tonnes of 63% Nitric acid we can get?
jeyben [28]
There are 3 equations involved in manufacturing Nitric Acid from Ammonia. 

First the ammonia is oxidized:
4NH3 + 5O2 = 4NO + 6H2O

Then for the absorption of the nitrogen oxides.
2NO + O2 = N2O4

Lastly, the N2O4 is further oxidized into Nitric acid.
3N2O4 + 2H2O = 4HNO3 + 2NO

Then run stoichiometry through these equations.
The first equation produces roughly 271,722,938 grams of NO
The second equation produces roughly 416,606,944 grams of N2O4
The last equation produces roughly 380,412,294 grams of HNO3 (nitric acid)

Convert the exact number back into tons, and your answer is: <span>419.332775 tons.
</span>
Rounded, I'm going to say that's 419.33 tons.
Hope this helps! :)

Also, it seems that commercially, Nitric Acid is commonly made by bubbling NO2 into water, rather than using ammonia.
 
8 0
3 years ago
What number of atoms of phosphorus are present in 1.00g of each of the compounds in exercise 40?
ira [324]

Answer:

Answer: 1.095 * 10^22 atoms of P.

Explanation:

3 0
3 years ago
How many valance electrons are there in group 10?
poizon [28]

there are valence electrons 3 in group 10.

5 0
3 years ago
What is the volume of an object that has a mass of 3.5 grams and has a density of 2.50 g/mL? Include units and proper sig figs l
jolli1 [7]

1.4mL

Explanation:

Given parameters:

Mass of object = 3.5g

density = 2.5g/mL

Unknown:

Volume of the object = ?

Solution:

Density is the mass per unit volume of a body. It is an intensive property that is the same for the same substances.

   Density = \frac{mass}{volume}

  since the volume is unknown; we make it the subject of the formula;

 Volume = \frac{mass}{density}

Volume = \frac{3.5}{2.5}

Volume of the object = 1.4mL

learn more:

Density brainly.com/question/4825250

#learnwithBrainly

8 0
3 years ago
How many electrons do all atoms want to have in their outer energy level?
34kurt

Answer: 8 electrons

Explanation:

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3 years ago
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