During the water cycle, water is evaporated from the Earth and becomes water vapor. Water vapor then condenses in the air to

Chemistry

1 answer:

Kobotan [32]3 years ago

3 0

No water is lost because matter cannot be created nor destroyed

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How does the VSEPR theory explain molecular shape

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Answer:

to VSEPR theory, the shape of a molecule is related to the organization of the central atom's valence shell electrons. The valence shell electrons are all negatively charged and therefore are constantly repelling each other. This repulsion is what gives a molecule its three-dimensional shape.

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Answer: A:5 B:2 C:15 D:8 E:O

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Which letter in the diagram above represents a mountain range in the ocean floor

DIA [1.3K]

THE QUESTION:which letter in the diagram above represents a mountain range in the ocean floor

A.Letter B

B.letter D

C.letter E

D.letter F

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7. Explain how magnetic potential energy can be transformed into kinetic energy. (1 point)

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2 years ago

Consider a voltaic cell where the anode half-reaction is Zn(s) → Zn2+(aq) + 2 e− and the cathode half-reaction is Sn2+(aq) + 2 e

notsponge [240]

Answer: The concentration of $Sn^{2+}$ in the cell is $9.0\times 10^{-3}M$

Explanation:

We are given:

Oxidation half reaction: $Zn(s)\rightarrow Zn^{2+}(aq.)+2e^-$ $E^o_{Zn^{2+}/Zn}=-0.76V$

Reduction half reaction: $Sn^{2+}(aq.)+2e^-\rightarrow Sn(s)$ $E^o_{Sn^{2+}/Sn}=-0.136V$

The substance having highest positive $E^o$ potential will always get reduced and will undergo reduction reaction. Here, fluorine will undergo reduction reaction will get reduced.