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3 years ago

Metals react with ______ to form compounds that are alkaline.

Chemistry

2 answers:

Zanzabum3 years ago

7 0

Answer:

I think it is B.

Explanation:

Hope my answer has helped you!

Zolol [24]3 years ago

4 0

ANSWER:

Metals react with to form hydrogen (H) compounds that are alkaline.

ANSWER IS A

~batmans wife dun dun dun....

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1. The solubility of lead(II) chloride at some high temperature is 3.1 x 10-2 M. Find the Ksp of PbCl2 at this temperature.

solniwko [45]

Answer:

1) The solubility product of the lead(II) chloride is $1.2\times 10^{-4}$ .

2) The solubility of the aluminium hydroxide is $1.6\times 10^{-10} M$ .

3)The given statement is false.

Explanation:

Solubility of lead chloride = $S=3.1\times 10^-2M$

$PbCl_2(aq)\rightleftharpoons Pb^{2+}(aq)+2Cl^-(aq)$

S 2S

The solubility product of the lead(II) chloride = $K_{sp}$

$K_{sp}=[Pb^{2+}][Cl^-]^2$

$K_{sp}=S\times (2S)^2=4S^3=4\times (3.1\times 10^{-2})^3=1.2\times 10^{-4}$

The solubility product of the lead(II) chloride is $1.2\times 10^{-4}$ .

Concentration of aluminium nitrate = 0.000010 M

Concentration of aluminum ion = $1\timed 0.000010 M=0.000010 M$

Solubility of aluminium hydroxide in aluminum nitrate solution = $S$

$Al(OH)_3(aq)\rightleftharpoons Al^{3+}(aq)+3OH^-(aq)$

S 3S

The solubility product of the aluminium nitrate = $K_{sp}=1.0\times 10^{-33}$

$K_{sp}=[Al^{3+}][OH^-]^3$

$1.0\times 10^{-33}=(0.000010+S)\times (3S)^3$

$S=1.6\times 10^{-10} M$

The solubility of the aluminium hydroxide is $1.6\times 10^{-10} M$ .

$Molarity=\frac{Moles}{Volume (L)}$

Mass of NaCl= 3.5 mg = 0.0035 g

1 mg = 0.001 g

Moles of NaCl = $\frac{0.0035 g}{58.5 g/mol}=6.0\times 10^{-5} mol$

Volume of the solution = 0.250 L

$[NaCl]=\frac{6.0\times 10^{-5} mol}{0.250 L}=0.00024 M$

1 mole of NaCl gives 1 mole of sodium ion and 1 mole of chloride ions.

$[Cl^-]=[NaCl]=0.00024 M$

Moles of lead (II) nitrate = n

Volume of the solution = 0.250 L

Molarity lead(II) nitrate = 0.12 M

$n=0.12 M]\times 0.250 L=0.030 mol$

1 mole of lead nitrate gives 1 mole of lead (II) ion and 2 moles of nitrate ions.

$[Pb^{2+}]=[Pb(NO_2)_3]=0.030 M$

$PbCl_2(aq)\rightleftharpoons Pb^{2+}(aq)+2Cl^-(aq)$

Solubility of lead(II) chloride = $K_{sp}=1.2\times 10^{-4}$

Ionic product of the lead chloride in solution :

$Q_i=[Pb^{2+}][Cl^-]^2=0.030 M\times (0.00024 M)^2=1.7\times 10^{-9}$

$Q_i$ ( no precipitation)

The given statement is false.

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Draw the lewis formula for chlorobenzene, a benzene derivative. include all hydrogen atoms and lone pairs.

larisa86 [58]

<span>Chlorobenzene is an aromatic organic compound with the chemical formula C6H5CI. This of benzene in the presence of a catalytic amount Lewis acid such as ferric chloride, sulfur dichloride, and anhydrous aluminum chloride. Upon entering the body, typically via contaminated air, chlorobenzene is excreted both via the lungs and the urinary system.</span>

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The high level of pollution in earth's is a planet problem

svet-max [94.6K]

Answer:

According to the World Economic Forum, air pollution was found to be the largest current environmental threat to our public health. Up to 52,000 people die every year in the United States alone because of exposure to emissions from power plant emissions.

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Which organic compound listed below does not have a carbonyl group ?

Free_Kalibri [48]

I believe the answer is F

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3 years ago

Do we get to see all sides of the moon? Why?

nignag [31]

Answer:

Yes

Explanation:

As the earth orbits around the earth, the moon orbits around us, meaning it shows its entire body as it orbits

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