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Norma-Jean [14]
3 years ago
5

Give me two sources of air pollution ​

Chemistry
1 answer:
Liula [17]3 years ago
6 0

Answer:

Explanation:

Types of Sources

There are four main types of air pollution sources: mobile sources – such as cars, buses, planes, trucks, and trains. stationary sources – such as power plants, oil refineries, industrial facilities, and factories. area sources – such as agricultural areas, cities, and wood burning fireplaces.

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A student dissolved a 40-gram block of a salt in 100 grams of warm water at 45°C. The solution was allowed to cool down to 24°C.
skad [1K]

Answer: 28 grams

Explanation:

5 0
2 years ago
Read 2 more answers
A mixture of 14.2 g of H2 and 36.7 g of Ar is placed in a 100.0 L container at
TiliK225 [7]

a) The total pressure of the system is  1.79 atm

b) The mole fraction and partial pressure of hydrogen is  0.89 and 1.59 atm respectively

c) The mole fraction and the partial pressure  of argon is 0.11 and 0.19 atm.

<h3>What is the total pressure?</h3>

We know tat we can be able to obtain the total pressure in the system by the use of the ideal gas equation. We would have from the equation;

PV = nRT

P = pressure

V = volume

n = Number of moles

R = gas constant

T = temperature

Number of moles of hydrogen = 14.2 g/2g = 7.1 moles

Number of moles of Argon = 36.7 g/40 g/mol

= 0.92 moles

Total number of moles =  7.1 moles + 0.92 moles = 8.02 moles

Then;

P = nRT/V

P = 8.02 * 0.082 * 273/100

P = 1.79 atm

Mole fraction of hydrogen = 7.1/8.02 = 0.89

Partial pressure of hydrogen =  0.89 * 1.79 atm

= 1.59 atm

Mole fraction of argon = 0.92 / 8.02

= 0.11

Partial pressure of argon = 0.11  *  1.79 atm

= 0.19 atm

Learn more about partial pressure:brainly.com/question/13199169

#SPJ1

3 0
1 year ago
How many moles are in 13.1 grams of aluminum
Andrej [43]

Answer:

2 significant figure is 13.1 aluminium

5 0
3 years ago
Which statement correctly describes soil horizon C? A. It is considered the subsoil layer. B. It is the horizon with the smalles
kirill [66]

Answer:

i believe that the answer is c

Explanation:

I think its c because because its used as a bed rock layer

8 0
3 years ago
The elements in any blank in periodic table have similar physical and chemical properties
Yakvenalex [24]
Elements in the same group have similar properties
8 0
3 years ago
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