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3 years ago

What type of pollution in cities composed of car exhaust and industrial pollutes

Chemistry

2 answers:

stich3 [128]3 years ago

5 0

Are there any options. because that would be air pollution but is there specific terms?

Troyanec [42]3 years ago

4 0

Air pollution is the answer

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Light energy comes from

Travka [436]

Answer:

The sun

Explanation:

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3 years ago

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Earth’s orbit around the Sun is determined by the balance of the Sun’s gravitational pull on Earth and Earth’s forward momentum

Andru [333]

Answer:

Earth would stop orbiting the Sun and begin moving in a straight line.

Explanation:

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3 years ago

Calculate ΔH o rxn for the following: CH4(g) + Cl2(g) → CCl4(l) + HCl(g)[unbalanced] ΔH o f [CH4(g)] = −74.87 kJ/mol ΔH o f [CCl

anzhelika [568]

Answer: ΔH for the reaction is -277.4 kJ

Explanation:

The balanced chemical reaction is,

$CH_4(g)+Cl_2(g)\rightarrow CCl_4(l)+HCl(g)$

The expression for enthalpy change is,

$\Delta H=\sum [n\times \Delta H(products)]-\sum [n\times \Delta H(reactant)]$

$\Delta H=[(n_{CCl_4}\times \Delta H_{CCl_4})+(n_{HCl}\times B.E_{HCl}) ]-[(n_{CH_4}\times \Delta H_{CH_4})+n_{Cl_2}\times \Delta H_{Cl_2}]$

where,

n = number of moles

Now put all the given values in this expression, we get

$\Delta H=[(1\times -139)+(1\times -92.31) ]-[(1\times -74.87)+(1\times 121.0]$

$\Delta H=-277.4kJ$

Therefore, the enthalpy change for this reaction is, -277.4 kJ

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3 years ago

What is the total pressure of a gas mixture containing partial pressures of

Advocard [28]

Answer:

1.54 atm

Explanation:

By Dalton's Law Of partial pressure,

Total Pressure = Sum of all partial pressures

So,P= P1 + P2 + P3

Therefore, P=0.23+0.42+0.89

=1.54 atm

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2 years ago

What kind of change results in a new substance being produced

tatiyna

Chemical change creates a new substance

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3 years ago

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