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3 years ago

Which phrases accurately describe acids? Check all that apply.

Chemistry

2 answers:

weqwewe [10]3 years ago

8 0

Answer: Option 1, 4 and 5 describe acids accurately.

Explanation:

Option 1: Acids have a sour taste because of the concentration of $H^+$ ion.

Option 2: They are corrosive in nature, that is they are not at all gentle with the skin and fabric as some acids intend to burn skin such as $H_2SO_4$ is a strong acid which can burn skin as well as fabric.

Option 3: Acids need electrons to release $H^+$ ions and non-metals do not donate electrons hence, there is no reaction between a non-metal and an acid.

Option 4: All acids do contain hydrogen. They dissociate in the presence of water to produce $H^+$ ions.

$HCl\overset{H_2O}{\rightarrow} H^++Cl^-$

Option 5: Acids do conduct electricity that is they carry electrical charges. This was explained by Arrhenius. He said that the acids dissociate into $H^+$ ions, when it is dissolved in water. These ions hence acts as charge carriers in water.

Flauer [41]3 years ago

7 0

Answer:

taste sour, contain hydrogen, carry electric charges

Explanation:

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2 years ago

Which action would shift this reaction away from solid calcium fluoride and toward the dissolved ions? which action would shift

ANTONII [103]

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The chemical reaction for the dissolving of calcium fluoride is the following:

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In this reaction, and according to Le Chatelier's principle, the action that would shift this reaction away from solid calcium fluoride and towards the dissolved ions is the removing of fluoride ions.

Le Chatelier's principle states that in an equilibrium reaction, the system would shift in the opposite direction of the changes. If we remove fluoride ions from the system, it will shift towards the formation of more fluoride ions by dissolving more Calcium Fluoride to achieve equilibrium again.

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3 years ago

In the chemical reaction: NaOH (s) + H2O Na+ (aq) + OH- (aq), which substance (or substances) is in solution? A. Na+ (aq) only B

bonufazy [111]

Answer:

in a chemical reaction of NaOH with H2O, after NaOH is completely disassociated, we will find Na+ and OH- ions in the solution. (option C).

Explanation:

In a reaction where NaOH is added to H2O.

NaOH is considered a strong base, this means that in an aqueous solution ( in water) it's able to completely disassociate in ions.

There will not remain any NaOH in the solution. This means option D is not correct.

The ions in which NaOH will disassociate are : NaOH → Na+ + OH-

These ions we will find in the solution.

Not only Na+ because NaOH is a strong base, so there will be a lot of OH- ions as well in solution.

This means in a chemical reaction of NaOH with H2O, after NaOH is completely disassociated, we will find Na+ and OH- ions in the solution.

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2 years ago