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3 years ago

Which two changes in state are most represented in water cycle

Chemistry

1 answer:

Nadya [2.5K]3 years ago

3 0

Answer: Evaporation and condensation are the two changes in state which are most represented in water cycle.

Explanation:

A process of circulation of water by passing through different states between the atmosphere, oceans and land is known as water cycle.

In water cycle, the most represented changes in state are evaporation and condensation. As during evaporation, the water present in the oceans, rivers, wells or on the land evaporates because of the heat from the sun as a result the liquid state is changing into gas.

Whereas, during condensation gas or water vapours changes into liquid. For example, when water condenses in the atmosphere it results in the formation of clouds.

Thus, it can be concluded that evaporation and condensation are the two changes in state which are most represented in water cycle.

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How many moles of hydrogen gas will be produced if 5.00 moles of zinc reactions with an excess amount of sulfuric acid

harkovskaia [24]

Answer:

Moles of Hydrogen produced is 5 moles

Explanation:

The balanced Chemical equation for reaction between zinc and sulfuric acid is :

$Zn(s) + H_{2}SO_{4}(aq) \rightarrow ZnSO_{4}(aq) + H_{2}(g)$

This equation tells that ; when 1 mole of Zn react with 1 mole of sulfuric acid, it produces 1 mole of zinc sulfate and 1 mole of hydrogen.

Since sulfuric acid is in excess so Zinc is the limiting reagent

(Limiting reagent : Substance which get consumed when the reaction completes, limiting reagent helps in predicting the amount of products formed)

Limiting reagent (Zn) will decide the amount of Hydrogen produced

$Zn(s) + H_{2}SO_{4}(aq) \rightarrow ZnSO_{4}(aq) + H_{2}(g)$

$1\ mole\ zinc\rightarrow 1\ mole\ H_{2}$

So,

$5\ mole\ zinc\rightarrow 5\ mole\ H_{2}$

Hence moles of Hydrogen produced is 5 moles

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2 years ago

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goldenfox [79]

Answer:

the blanket of gases that surrounds Earth and some other planets

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The earth's atmosphere is divided into many different layers.
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