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4vir4ik [10]
3 years ago
15

What does this mean???

Chemistry
1 answer:
satela [25.4K]3 years ago
8 0

Answer:

Its known as static electricity

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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
Anettt [7]

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
If a solution of glucose has a concentration of 0.500 M, how many moles of are in 8.00 L of
Sidana [21]

Answer:

n = 4mol

Explanation:

n =? C= 0.5M, V = 8L

Substitute into

n = CV

n= 0.5×8= 4mol

6 0
3 years ago
Most elements found in nature with the exception of the
Ira Lisetskai [31]

The right answer is noble gases.

The noble gases, or rare gases, are the chemical elements of group 18 (formerly "group VIIIA" or even "group 0") of the periodic table. These are helium He, neon 10Ne, argon 18Ar, krypton 36Kr, xenon 54Xe and radon 86Rn, the latter being radioactive.

This property means that they can not bind with other atoms to form molecules or lose electrons to transform into ions, hence their name noble or inert gases (they are not very active and do not do not mix). In nature, all elements "want" to become stable.

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Milk (pH 6.7)
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Ammonia is the most basic and has the highest OH- concentration since it has the highest pH.
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To make an object start moving, you must exert a force in
BaLLatris [955]

Answer: c any

Explanation:

3 0
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