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Sergio [31]
2 years ago
7

ANSWERED

Chemistry
1 answer:
gtnhenbr [62]2 years ago
6 0
That’s looks weird to be honest i have no ideas
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Generally speaking, elements with high electronegativities are 1. nonmetals. 2. likely to form anions (except the noble gases).
satela [25.4K]

Answer:

1. Nonmetals.  

2. Likely to form anions (except the noble gases).  

3. All of these  

4. Easily reduced (except the noble gases).

Explanation:

Elements with high electronegativities are found towards the upper right corner of the Periodic Table. Thus, they have all the above properties.

4 0
3 years ago
Lead(II) nitrate is added slowly to a solution that is 0.0800 M in Cl− ions. Calculate the concentration of Pb2+ ions (in mol /
barxatty [35]

Answer:

[Pb^{2+}]=3.9 \times 10^{-2}M

this is the concentration required to initiate precipitation

Explanation:

PbCl_2  ⇄ Pb^{2+}+2Cl^-

Precipitation starts when ionic product is greater than solubility product.

Ip>Ksp

Precipitation starts only when solution is supersaturated because solution become supersaturated then it does not stay in this form and precipitation starts itself only solution become saturated.

This usually happens when two solutions containing separate sources of cation and anion are mixed together and here also we are mixing lead (||)nitrate solution(source of lead(||)) into the Cl- solution.

Ip=[Pb^{2}][2Cl^-]^2=Ksp

Ksp=2.4\times 10^{-4}

lets solubility=S

[Pb^{2+}] = S

[Cl^-]=2S

Ksp=[Pb^{2+}]\times [Cl^-]^2

Ksp=S \times (2S)^2

Ksp=4S^3

S=\sqrt[3]{\frac{Ksp}{4} }

S=3.9\times 10^{-2}

[Pb^{2+}]=3.9 \times 10^{-2}M this is the concentration required to initiate precipitation

4 0
3 years ago
Which process of the water cycle occur by releasing energy?
pshichka [43]
Condensation occurs through the release of energy
5 0
3 years ago
Which energy change occurs during boiling?
satela [25.4K]
Heat energy is absorbed by the substance
4 0
3 years ago
Read 2 more answers
Help pls , question is in picture
Nata [24]

Explanation:

IM PRETTY SURE IT IS D !! IF ITS WRONG IM SORRY THAT WHAT

I GOT

8 0
3 years ago
Read 2 more answers
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