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3 years ago

Name the reaction type & mechanism of the following reactions:

Chemistry

2 answers:

mojhsa [17]3 years ago

6 0

Answer:

DISPLACEMENT REACTION

COMBINATION REACTION

DOUBLE DISPLACEMENT REACTION

DECOMPOSITION REACTION

Natali5045456 [20]3 years ago

4 0

Answer:

MECHANISM:

1) The lone pair on oxygen attacks the H-Br molecule forming a hydronium ion.

2) Formation of carbocation.

3) Attack of Nucleophile Br − .

Explanation:

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Explain how a seismometer works

Radda [10]

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3 years ago

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Welding is an industrial process that is used to join pieces of metal. A certain mixture of gases used in welding is composed of

GarryVolchara [31]

The given question is incomplete. The complete question is :

Welding is an industrial process that is used to join pieces of metal. A certain mixture of gases used in welding is composed of carbon dioxide and argon. The partial pressure of carbon dioxide is 0.080 atm and the partial pressure of argon is 0.24 atm. What is the total pressure of the mixture.

Answer: 0.32 atm

Explanation:

According to Dalton's law, the total pressure is the sum of individual pressures.

$p_{total}=p_{CO_2}+p_{Ar}$

Given : $p_{total}$ =total pressure of gases = ?

$p_{CO_2}$ = partial pressure of carbon dioxide = 0.080 atm

$p_{Ar}$ = partial pressure of argon = 0.24 atm

putting in the values we get:

$p_{total}=0.080atm+0.24atm$

$p_{total}=0.32atm$

Thus the total pressure of the gases is 0.32 atm

8 0

3 years ago

What is the ph of 0.51 m ca(ch3coo)2 solution?

Sidana [21]

Answer : The pH of calcium acetate solution will be 9.38.

Explanation : When calcium acetate dissocates completely in solution to form Calcium(+2) ions and two acetate ions, this gives the acetate ion concentration as (2 X 0.51 M) = 1.02 M

Acetate ion then hydrolyzes as follows;

$C_{2}H_{3}O_{2}^{-} + HOH HC_{2}H_{2}O_{2} + OH^{-}$ :

Now, Kb will be = $[HC_{2}H_{2}O_{2}] [OH^{-}]$ / $[C_{2}H_{3}O_{2}^{-}]$

= Kw / Ka

= 1 x $10^{-14}$ / 1.8 x $10^{-5}$ = 5.6 × $10^{-10}$

$[OH^{-}]$ = 2.4 × $10^{-5}$

Now, we know , pOH = -log $[OH^{-}]$ = 4.62

So, the pH = 14 - pOH = 14 - 4.62 = 9.38

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3 years ago

Read the list of elements given below. Be, Mg, Ca, Sr Which of the following about the elements is true? (5 points)

slava [35]

Answer:

Pretty Sure Its A

Explanation:

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3 years ago

Write a nuclear equation for the alpha decay of 23892U.23892U → 0−1e + 23893Np23892U → 10n + 23792U23892U → 42He + 23490Th23892U

romanna [79]

Answer:

23892U=23490Th +42He

Explanation:

In alpha decay, the daughter nucleus is two units less than the parent in atomic number. The mass number also decreases by 4 units. The daughter is thus found two places before the parent in the periodic table.

5 0

3 years ago