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adoni [48]
3 years ago
9

Which type of disease is caused by pathogens? a(n) disease

Chemistry
1 answer:
Lerok [7]3 years ago
4 0
Sorry I’m just here for more questions
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Will get brainlest and i with 10 points if right
Dima020 [189]

Answer: D

Explanation:

They form from Coal under high high pressure and many many years

4 0
3 years ago
According to the lab guide, which changes below will you look for in order to test the hypothesis? check all that apply. changes
viktelen [127]

Answer:

All of them are.

Explanation:

8 0
4 years ago
Read 2 more answers
Consider the following list of gases:
LiRa [457]

Explanation:

Molecules which are either polar in nature or contain a polar covalent bond are able to dissolve in water. This is because like dissolves like.

For example, SO_{3} is a polar covalent compound and when it is dissolved in water then its reaction is as follows.

       SO_{3} + H_{2}O \rightarrow H_{2}SO_{4}

This shows that a chemical reaction will take place when SO_{3} is dissolved in water.

Also, HI is a polar covalent compound and it will readily dissolve in water as hydrogen iodide (HI) is a polar covalent molecule.

On the other hand, H_{2}, SF_{6}, and C_{2}H_{4} does not dissolve in water as all of these are non-polar covalent compounds.

Thus, we can conclude that the gas most likely to dissolve in water as a result of chemical reaction is SO_{3} and the gas most likely to dissolve in water because of strong intermolecular interactions is HI.

7 0
3 years ago
Why is carbon used to extract metals from their oxides? ​
pashok25 [27]

Answer:

If a metal is less reactive than carbon, it can be extracted from its oxide by heating with carbon. The carbon displaces the metal from the compound, and removes the oxygen from the oxide. This leaves the metal.

Explanation:

4 0
3 years ago
How many molecules are in 0.0740 mol NH3?
Mariana [72]

Number of molecules NH₃ = 4.45 x 10²²

<h3>Further explanation   </h3>

A mole is a number of particles(atoms, molecules, ions)  in a substance

This refers to the atomic total of the 12 gr C-12  which is equal to 6.02.10²³, so 1 mole = 6.02.10²³ particles  

Can be formulated :

N = n x No

N = number of particles

n = mol

No = 6.02.10²³ = Avogadro's number

mol of NH₃ = n = 0.074

So the number of molecules :

\tt N=n\times No\\\\N=0.0740\times 6.02\times 10^{23}\\\\N=4.45\times 10^{22}

3 0
3 years ago
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