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Wittaler [7]
3 years ago
11

A fire turns dead trees/decaying trees into ash which nutrients return to the soil.

Chemistry
1 answer:
astra-53 [7]3 years ago
4 0

Answer:

After a wild fire when trees burn out and all there is left of them are the ashes. This ash has a high alkaline level i.e. high pH level whereas the soil of the forest is acidic. The alkaline ashes basically neutralize the soil of the forest.

The chemical change that occurs due to the fire and the risen temperature of soil due to fire, gives a push to the increased microbial activity. This leads to the increased rate of decomposition which makes the soil all the more nutritious for new plants to grow.

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If the pressure of 125 cm3 of nitrogen gas at 100 °c decreases from 885 torr to 225torr, what is the final volume? assume temper
navik [9.2K]
Suppose the Gas is acting ideally, Then, According to Ideal Gas Equation;

                                               P₁ V₁  =  P₂ V₂    ----- (1)
Data Given:
                  P₁  =  885 torr

                  V₁  =  125 cm³

                  P₂  =  225 torr

                  V₂  =  ?

Puting values in eq, 1;

                                     V₂  =  P₁ V₁ / P₂

                                     V₂  =  (885 torr × 125 cm³) ÷ 225 torr

                                     V₂  =  491.66 cm³
4 0
3 years ago
Do you think crystals formed in conditions that were stable or did they change often?
andreev551 [17]

Answer:

They were made in unstable conditions

Explanation: Im smarty pants

6 0
3 years ago
Starting with acetylene and bromoethane, show how you would use reagents from the table to synthesize 3-hexanone.
Jobisdone [24]

solution:

A = 192 x (1/2) ^ (15/5) = 192 x (1/2) ^3 = 192 x 1/8 = 24 mg

 Starting by hitting acetylene with NaNH2 to deprotonate, this C-- will attack the C connected to the Br Sn2 style to lengthen the chain by two carbons.  

Do this same thing again with the other CH of the acetylene and another bromoethaneto get a six carbon chain, namely, 3-hexyne.  

Now, reduce the alkyne to an alkene via H2/Pd/C, and that gives 3-hexene.  


3 0
3 years ago
PLEASE HELP- CHEMISTRY QUIZ
jonny [76]

Answer:

•Li2S is at a low melting point

•NCL3 is a covalent bond

Explanation:

Just some notes to help you:))

Covalent Bonds: A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons

5 0
3 years ago
The first ionization energy, e, of a potassium atom is 0.696 aj. what is the wavelength of light, in nm, that is just sufficient
elena55 [62]
The formula to be used for this problem is as follows:

E = hc/λ, where h is the Planck's constant, c is the speed of light and λ is the wavelength. Also 1 aJ = 10⁻¹⁸ J

0.696×10⁻¹⁸ = (6.62607004×10⁻³⁴ m²·kg/s)(3×10⁸ m/s)/λ
Solving for λ,
λ = 2.656×10⁻⁷ m or <em>0.022656 nm</em>
6 0
3 years ago
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