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2 years ago

Write two half‑reactions to describe each of these metal displacement reactions. Include phase symbols.

Chemistry

1 answer:

spin [16.1K]2 years ago

7 0

Mg (s) ---> Mg²⁺ (aq) + 2e

Co²⁺ (aq) + 2e ---> Co(s)

Cu (s) ---> Cu²⁺ (aq) + 2e

Au²⁺ (aq) + 2e ---> Au(s)

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: Citric acid, H3C6H5O7, is a triprotic acid. Consider a buffer system comprising H2C6H5O7 - and HC6H5O7 2- ions. What is the ne

olchik [2.2K]

Answer:

The Net reaction is

$H_3C_6H_5O_7 + 0H^- ----> H_2C_6H_5O_7^- +H_2O \ \ \ \ \ \ \ Main \ Reaction$
$H_2C_6H_5O_7^ - + OH^- ----> H_C_6H_5O_7^{ 2-} + H_2O \ \ \ \ Add \ NaOH$
$HC_6H_5O_7 ^{2-} + OH^- ---> C_6H_5O_7^{3-} +H_2O \ \ \ \ \ Add \ NaOH$

Explanation:

From the Question we are told that the buffers are

$H_2C_6H_5O_7^ -$ and $HC_6H_5O_7 ^{ 2-}$

When NaOH is added the Net ionic reaction would be

$H_3C_6H_5O_7 + 0H^- ----> H_2C_6H_5O_7^- +H_2O \ \ \ \ \ \ \ Main \ Reaction$
$H_2C_6H_5O_7^ - + OH^- ----> H_C_6H_5O_7^{ 2-} + H_2O \ \ \ \ Add \ NaOH$
$HC_6H_5O_7 ^{2-} + OH^- ---> C_6H_5O_7^{3-} +H_2O \ \ \ \ \ Add \ NaOH$

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3 years ago

Read 2 more answers

Write an equation between the carbonate and the acid

allochka39001 [22]

Answer:

In general an acid reacts with a carbonate or hydrogen-carbonate to produce a salt, carbon dioxide gas and water.

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3 years ago

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Answer:

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Explanation:

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3 years ago

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Answer:

Test tubes A and B turn a darker blue color.

Explanation:

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3 years ago

The autoignition of both ethanol and octane occurs at 363 oC. Which gas sample contains the gas molecules that have a greater av

USPshnik [31]

Answer:

See explanation

Explanation:

At the same temperature, the average kinetic energy of gases depends on the molecular mass of the gas. Hence, given a particular temperature, lighter molecules travel faster on the average than heavier molecules.

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3 years ago