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1 year ago

Which of the following air pollutants is correctly paired with one of its major effects?

Chemistry

1 answer:

Alik [6]1 year ago

3 0

Answer:

The correct option is;

Sulfur oxides - acid precipitation

Explanation:

Here we have sulfur oxide when present in the atmosphere and mixed with oxygen water and other chemicals form acidic precipitation known as acid rain.

The sulfur oxides reacts with water in the clouds to form sulfuric acid as follows;

The sulfur gas is first oxidized

SO₂ + OH → HOSO₂

The next stage is the formation of sulfur trioxide

HOSO₂ + O₂ → HO₂ + SO₃

Sulfur trioxide combines with water to form sulfuric acid

SO₃ + H₂O → H₂SO₄ (aq).

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Calculate the number of grams of xenon in 4.658 g of the compound xenon tetrafluoride.

andrezito [222]

Answer:

The mass of xenon in the compound is 2.950 grams

Explanation:

Step 1: Data given

Mass of XeF4 = 4.658 grams

Molar mass of XeF4 = 207.28 g/mol

Step 2: Calculate moles of XeF4

Moles XeF4 = mass XeF4 / molar mass XeF4

Moles XeF4 = 4.658 grams / 207.28 g/mol

Moles XeF4 = 0.02247 moles

Step 3: Calculate moles of xenon

XeF4 → Xe + 4F-

For 1 mol xenon tetrafluoride, we have 1 mol of xenon

For 0.02247 moles XeF4 we have 0.02247 moles Xe

Step 4: Calculate mass of xenon

Mass xenon = moles xenon * molar mass xenon

Mass xenon = 0.02247 moles * 131.29 g/mol

Mass xenon = 2.950 grams

The mass of xenon in the compound is 2.950 grams

5 0

1 year ago

When salt is introduced to water, the temperature at which freezing occurs is?

Vladimir [108]

28.4 degrees fahrenheit

5 0

2 years ago

The mass unit associated with density is usually grams. if the volume (in ml or cm3) is multiplied by the density (g/ml or g/cm3

jok3333 [9.3K]

The weight in grams = 7.93 g

Given volume = 2.00 $in^{3}$

Given density = 0.242 g/ $cm^{3}$

We need to find the Mass(weight) in grams.

To find the weight in grams we need to keep in mind that the volume and density must use the same volume unit for cancellation. So that the volume units will cancel out, leaving only the mass units.

The unit of given volume is $in^{3}$ and unit of volume in density is $cm^{3}$ , so first we need to change the unit of volume from $in^{3}$ to $cm^{3}$ so that the volume units will cancel out, leaving only the mass units.