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3 years ago

What does the line with “alternating spikes and semicircles” mean?

Chemistry

1 answer:

Usimov [2.4K]3 years ago

8 0

Answer:

The line with spikes and semicircles is a stationary front, it brings days of steady rain.

Explanation:

L means Low pressure, it brings stormy weather with strong winds.

H means High pressure, it brings fair weather and light winds.

The line with spikes is a cold weather front, it brings thunderstorms and colder

temperatures.

The line with spikes and semicircles is a stationary front, it brings days of steady rain.

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sp2606 [1]

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3 years ago

What are the products of the following reaction C6H6+O2

Stels [109]

Answer: The answer is C

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3 years ago

Which of the following contains only one

kipiarov [429]

Answer:

A. elements

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3 years ago

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stiks02 [169]

Answer:

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Explanation:

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2 years ago

To calculate the enthalpy change for the reaction, 2CO (g) + O2 (g) Imported Asset 2 CO2 (g), you can use ΔHf0 values for each r

svetoff [14.1K]

Answer:

ΔH0reaction = [ΔHf0 CO2(g)] - [ΔHf0 CO(g) + ΔHf0 O2(g)]

Explanation:

Chemical equation:

CO + O₂ → CO₂

Balanced chemical equation:

2CO + O₂ → 2CO₂

The standard enthalpy for the formation of CO = -110.5 kj/mol

The standard enthalpy for the formation of O₂ = 0 kj/mol

The standard enthalpy for the formation of CO₂ = -393.5 kj/mol

Now we will put the values in equation:

ΔH0reaction = [ΔHf0 CO2(g)] - [ΔHf0 CO(g) + ΔHf0 O2(g)]

ΔH0reaction = [-393.5 kj/mol] - [-110.5 kj/mol + 0]

ΔH0reaction = [-393.5 kj/mol] - [-110.5 kj/mol]

ΔH0reaction = -283 kj/mol

7 0

3 years ago