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2 years ago

(BRAINLIEST) compounds that are used to reduce acidity of soil

Chemistry

2 answers:

Crank2 years ago

8 0

Answer:

Pulverized Limestone

Explanation:

Hope it helps!!

lidiya [134]2 years ago

4 0

The most common way to raise the pH of soil is to add pulverized limestone to the soil. Limestone acts as a soil acid neutralizer and consists of either calcium and magnesium carbonate or calcium carbonate. These are called dolomitic limestone and calcite limestone respectively.

Hope it helps!

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A student followed the procedure of this experiment to determine the solubility product of zinc(II) iodate, Zn(IO3)2. Solutions

Fed [463]

Answer:

Explanation:

Complete the table below and determine the solubility product constant.

[Zn(NO₃)₂] 0, M Initial 0.226, 0.101 0.0452, 0.0118

[KIO₃] 0, M Titrant 0.200, 0.200, 0.200, 0.200

V₀, mL of Zn(NO₃)₂100.0, 100.0, 100.0, 100.0

V, mL of KIO₃ titrant 12.9, 12.4, 13.0, 18.3

What needs to be determined are the following for each column/sample

V0 + V, mL

[Zn²⁺] + [IO³⁻] ⇄ [Zn²⁺][IO³⁻]2

log [Zn²⁺][IO³⁻]2

$\frac{\sqrt{Zn^{2+}}}{1 + \sqrt{Zn^{2+}}}$

Then there's the determination of Ksp itself

log Ksp = Ksp of Zn(IO3)2 =

Considering this, which of the ion products is closest to Ksp, and why?

Finally, the titration volumes for the first three samples don't vary greatly. However the last sample is considerably larger. Why is this to be expected?

The attached figures shed more light on the solution to this problem

7 0

3 years ago

Looking at the periodic table, which element is a non-metal?

JulijaS [17]

Answer:

Argon (Ar)

Explanation:

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7 0

3 years ago

A West Virginia coal is burned at a rate of 8.02 kg/s. The coal has a sulfur content of 4.40 % and the bottom ash contains 2.80

aleksley [76]

Answer: The annual emission rate of SO2 is 1.08 × $10^{7}$ kg/yr

Explanation:

The rate r at which the coal is been burnt is 8.02 kg/s.

Amount of sulphur in the burning coal is given as 4.40 %

i.e., 4.4/100 × 8.02 = 0.353 kg/s. Which is equivalent to the rate at which the sulphur is been burnt.

Since the burning of sulphur oxidizes it to produce SO2, it follows that the non-oxidized portion of the sulphur will go with the bottom ash.

The bottom ash is said to contain 2.80 % of the input sulphur.

Hence the portion of the SO2 produced is 100 — 2.80 = 97.20 %.

The rate of the SO2 produced is percentage of SO2 × rate at high sulphur is been burnt.

= 97.20/100 × 0.353 kg/s.

= 0.343 kg/s.

To get the annual emission rate of SO2, we convert the kg/s into kg/yr.

1 kg/s = 1 kg/s × (60 × 60 × 24 × 365) s/yr

1 kg/s = 31536000 kg/yr

Therefore, 0.343 kg/s = 0.343 × 31536000 kg/yr

= 10816848 kg/yr

= 1.08 × 10^7 kg/yryr.

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3 years ago

A 2.50-l volume of hydrogen measured at â196 Â°c is warmed to 100 Â°c. calculate the volume of the gas at the higher temperature

ivann1987 [24]

To solve this we assume that the hydrogen gas is an ideal gas. Then, we can use the ideal gas equation which is expressed as PV = nRT. At a constant pressure and number of moles of the gas the ratio T/V is equal to some constant. At another set of condition of temperature, the constant is still the same. Calculations are as follows:

T1 / V1 = T2 / V2

V2 = T2 x V1 / T1

V2 = (100 + 273.15) K x 2.50 L / (-196 + 273.15) K

V2 = 12.09 L

Therefore, the volume would increase to 12.09 L as the temperature is increased to 100 degrees Celsius.

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3 years ago

Which of the following elements has the highest electronegativity?

Nastasia [14]

Answer: is c

Explanation:

8 0

3 years ago

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