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Licemer1 [7]
2 years ago
13

What is the most commonly preferred pH range for soil?

Chemistry
2 answers:
Semenov [28]2 years ago
7 0

Answer:

6.2 to 7.0

Explanation:

The “ideal” soil pH is close to neutral, and neutral soils are considered to fall within a range from a slightly acidic pH of 6.2-6.5 to slightly alkaline pH of 7.0-7.5. It has been determined that most plant nutrients are optimally available to plants within this 6.5 to 7.5 pH range, plus this range of pH is generally very compatible to plant root growth.

:-befrank

Tems11 [23]2 years ago
3 0

Answer:

Between 5.5 to 7.5

The optimum pH range for most plants is between 5.5 and 7.5

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If the complete conversion of 1.383g of XI2 results in the formation of 0.564g of XCl2,what is the atomic mass of the element X
Marina CMI [18]

Answer:

So X has an atomic mass of 55.05 u, and is probably Mn

Explanation:

<u>Step1: </u>Balance the equation

XI2 +Cl2 →  XCl2 + I2

<u>Step2:</u> find the molar mass of the compounds

<em><u>Compounds : </u></em>

X  ⇒ Molar mass = M

XI2 ⇒ Molar mass = M + 2*126.9 u

XCl2 ⇒Molar mass = M + 2*35.45u

⇒For 1 mole XI2 we have 1 mole Cl2 reacting , as well as 1 mole XCl2 and 1 mole I2 produced.

<u>Step 3:</u> Calculating the atomic mass

(1.383g * XI2) / (M + 2*126.90 u)  = (0.564g * XCl2) / ( M + 2 * 35.45u)

1.383 (M + 2 *35.45 u )= 0.564 (M  + 2*126.90)

1.383M + 98.0547 = 0.564 M + 143.1432

1.383 M - 0.564 M =143.1432 - 98.0547

0.819 M = 45.0885

M = 55.05 u

So X has an atomic mass of 55.05 u ⇒ if we look at the periodic table we can find that the closest element is Manganese (Mn)

MnI2 + Cl2 → MnCl2 + I2

5 0
3 years ago
Which element has chemical properties most similar to carbon (C)?
julia-pushkina [17]
Silicon
Silicon has the chemical properties that are most similar to those of carbon.
6 0
2 years ago
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What type of solid has the highest melting point?
dem82 [27]

Answer: B -Network solids

Ionic solids are held by positive and negative charged ions bonded by electrostatic forces. The electrostatic force is much stronger than dipole–dipole interactions, London dispersion forces, hydrogen bonding.

Molecular solids are held by dipole–dipole interactions, London dispersion forces, or hydrogen bonds. Benzene is an example of this. These inter-molecular force are much weaker than electrostatic force.

The metallic bonds are much weaker than electrostatic force. Similarly, in non-metallic solids the atoms are held by covalent bonds. These covalent bonds are weaker than the electrostatic force.

Thus we can conclude that electrostatic force is the strongest when compared to  dipole–dipole interactions, London dispersion forces, hydrogen bonding,covalent and metallic bonds. Thus ionic solids will have the highest melting point as more energy is required to break the ionic bonds as this is the strongest bond compared to the other bonds.

8 0
3 years ago
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1093.5 rounded into 3 sig figs
Ray Of Light [21]
Significant figures means the number of important figures, 0 not included.

This means that the answer is 1094.00

Hope this helps! :)

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3 years ago
The most malleable metal is _________
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Answer:

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