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Elis [28]
3 years ago
9

What is the difference between a strong acid and a weak acid?

Chemistry
1 answer:
olasank [31]3 years ago
4 0
The answer to this is C.
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Identify from the following list of molecules and ions which behave as Lewis acids: CO2, NH3, BCl3, Fe3+. (A) CO2 and NH3 (B) NH
allsm [11]

Answer : The correct option is, (D) CO₂, BCl₃, and Fe³⁺

Explanation :

According to the Lewis concept, an acid is defined as a substance that accepts electron pairs and base is defined as a substance which donates electron pairs.

(a) CO_2

It is a Lewis-acid because it can accepts electron pairs.

(b) NH_3

It is not a Lewis-acid because it can not accepts electron pairs but it is a base because it can donates and accept hydrogen ion.

(c) BCl_3

It is a Lewis-acid because it can accepts electron pairs because it has an incomplete octet and an empty 2p orbital.

(d) Fe^{3+}

It is a Lewis-acid because it can accepts electron pairs.

Hence, the ions which behave as Lewis acids are, CO₂, BCl₃, and Fe³⁺

6 0
3 years ago
A compound has an empirical formula of C2H5. What is true about this empirical formula?
Anni [7]

Answer:

B. It shows the ratio of elements in the compound.

Explanation:

Empirical formula tells about the ration of the elements found in the compound . The ratio are in complete number .

For example the molecular formula of glucose is C₆ H₁₂O₆

Its empirical formula = CH₂O

7 0
4 years ago
Which of the following are held together by nonpolar covalent bonds? PLEASE HELP
steposvetlana [31]

Answer:

The atoms of chlorine are held together by non-polar covalent bonds. Covalent bonds are formed between two or more atoms having zero or very small electronegativity difference. For homonuclear molecules where the two bonding atom are of the same kind, the electronegativity difference is zero.

C. Atoms of chlorine (CI)

8 0
3 years ago
Read 2 more answers
Which of the following reactions is incorrectly labeled?
mars1129 [50]

<u>Answer:</u>

<em>The option a termed as precipitation reaction is incorrectly labelled. </em>

<u>Explanation:</u>

The chemical reactions are classified based on the reactants used and products formed in a reaction. They are decomposition reaction, single displacement reaction, double displacement reaction, acid-base neutralisation reaction, precipitation reaction, combustion reaction, redox reaction and organic reaction.

Among these, the given options are labelled as precipitation and combustion reaction. The one which is labelled as combustion reaction is correct because combustion reactions occur in the presence of oxygen only and the products of combustion reaction should include water, oxygen or carbon and heat.

The other option which is labelled as precipitation reaction is incorrect because precipitation reaction occurs when an ionic substance will come out of a solution due to heating it or stirring it making the solubility of the ionic substance in a solution zero such that it will come out as solid and form a layer at the bottom of the solution.

But in this case all the products are in aqueous state, there is absence of any ionic substance in solid state, so the option which is labelled as precipitation reaction is incorrectly labelled.

3 0
3 years ago
Carbon-12 and Carbon-14 are considered __________ of each other.
BabaBlast [244]

neutrons to the carbon-12 and carbon-14

4 0
3 years ago
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