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3 years ago

Which yields H+(aq) as the only positive ion in an aqueous solution?(1) CH3CHO (2) CH3CH2OH (3) CH3COOH (4) CH3OCH3

Chemistry

2 answers:

ioda3 years ago

7 0

Answer:The correct answer is option (3).

Explanation:

Carboxylic acid gives $H^+$ ions in their aqueous solution.

$RCOOH\rightleftharpoons RCOO^-+H^+$

$CH_3COOH\rightleftharpoons CH_3COO^-+H^+$

Carbonate ion formed is stabilized due to resonance.

Whereas aldehyde in their aqueous solution do not give $H^+$ ions.

Alcohol in their aqueous solution do not give $H^+$ ions.

Ether in their aqueous solution do not give $H^+$ ions.

Arte-miy333 [17]3 years ago

5 0

If H+ would have to dissociate from a substance and must be the only positive ion in the solution that substance must be an acid.
CH3CHO is an aldehyde called acetaldehyde.
CH3CH2OH is an alcohol called ethanol
CH3OCH3 is an ether called dimethyl ether.
and finally, the answer CH3COOH is a weak acid called acetic acid.

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Much like its household namesake, a molecular sieve utilizes differences in what property of substances to separate the componen

nlexa [21]

Answer: B . particle size

Explanation:

Let's begin by explaining that a molecular sieve is a device, whose composition allows the absorbtion of molecules that are small enough to pass through its pores, since it is made up of small pores of a precise and uniform size.

Thus, very small molecules manage to pass through the pores of the sieve, while large ones do not.

So, based on this premise, a molecular sieve separates the substances by their size.

Hence, the correct option is B.

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2 years ago

Write balanced chemical equations for the sequence of reactions that oxalic acid can undergo when it's dissolved in water.

Mashcka [7]

Answer and Explanation:

The balanced chemical equations are as follows:

The chemical formula of oxalic is $H_2C_2O_4$

In the case when oxalic acts reacted with the water so here the oxalic acid eliminates one proton that leads to the development of mono acids

After that, the second step derives that when oxalic acid is in aqueous solution eliminates other proton so it represent the polyprotic acid

Now the chemical equations are as follows:

Elimination of one proton

$H_2C_2O_4(aq)+H_2O(l) \rightarrow H_2C_2O_4^-(aq) + H_3O^+(aq)$

Now the elimination of other proton

$HC_2O_4^-(aq)+H_2O(l) \rightarrow C_2O_4^2^-(aq) + H_3O^+(aq)$

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2 years ago

grigory [225]

Answer:

The anser is C

Explanation:

This is because the fungi and bacteria are the decomposer, and their job is to decompose dead organism.

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2 years ago

Read 2 more answers

How many molecules are in 100 g of C6H1206?

rjkz [21]

Answer: 100 grams of glucose represents 0.55 moles .

Explanation:

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3 years ago

What do oxygen, silicon, and selenium have in common? How might this relate to their organization on the periodic table?

Sonbull [250]

Answer:

They all belong to the p block in the periodic table

Explanation:

Let us examine the electronic configuration of each element;

Oxygen - [He] 2s2 2p4

Silicon - [Ne] 3s2 3p2

Selenium - [Ar] 4s2 3d10 4p4

A common thread that joins all the elements listed above is that they all belong to the p-block in the periodic table. They could be collectively referred to as p-block elements.

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3 years ago