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2 years ago

How many valence electrons does this atom have? (Urgent plz help)

Chemistry

1 answer:

tigry1 [53]2 years ago

7 0

Answer: theres 5

Explanation: valence electrons are the electrons in the outer shell. I took that test a few weeks ago :0

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The moon's gravity pulls on everything on the earth, including the _____.

KengaRu [80]

Answer:

water and oceans

Explanation:

the moons creates tides as it goes around the

earth. This creates a bulge on the side of the earth.

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7 0

3 years ago

Why is it unnecessary to include an aluminum trihalide in electrophilic aromatic bromination reaction of acetanilide wih molecul

Helen [10]

Many electrophilic aromatic halogenations require the presence of an aluminum trihalide as a catalyst. We generally acetylated the amino group as protection. Now, this acetanilide can be brominated at Ortho or para position. An atom that is attached to an aromatic system usually hydrogen is replaced by an electrophile is an organic reaction which is called Electrophilic aromatic substitution. There are what you called important electrophilic aromatic substitutions they are aromatic nitration, aromatic sulfonation, aromatic halogenation and acylation and alkylating Friedel-Crafts reaction. Aromatic bromination is an electrophilic aromatic substitution (EAS) reaction, which will require benzene to act as a nucleophile to acquire an electrophile. Therefore, any directing groups that activate the ring will make it react more quickly with respect to aromatic bromination. Acetanilide is a moderately-activated ring <span>having a decent EWG.</span>

4 0

3 years ago

Please help it’s short please!!!!!!! Thank youuuu!!!

Fofino [41]

Answer:

first at start Aarau so I just way we Z

6 0

3 years ago

The molar solubility of zns is 1.6 Ã 10-12 m in pure water. Calculate the ksp for zns.

Oksi-84 [34.3K]

Answer:

The solubility product of zinc sulfide is $2.56\times 10^{-24}$ .

Explanation:

Solubility of the zinc sulfide = $S=1.6\times 10^{-12}$

$ZnS\rightleftharpoons Zn^{2+}+S^{2-}$

S S

The expression of solubility product is given by :

$K_{sp}=[Zn^{2+}]\times [S^{2-}]$

$K_{sp}=S\times S=S^2$

$=1.6\times 10^{-12}\times 1.6\times 10^{-12}=2.56\times 10^{-24}$

The solubility product of zinc sulfide is $2.56\times 10^{-24}$ .

5 0

3 years ago

The tiny particles that make up elements are called atoms.<br> True<br> False

raketka [301]

True.
where the atom is the smallest (tiny) particle of an element, the atom may be neutral or ionized, and its size is around 100 picometers. The atom composed of a nucleus and one or more electrons (negative charge) bound to the nucleus, the nucleus contains protons (positive charge) and neutrons.

7 0

3 years ago

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