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Romashka [77]
3 years ago
10

What type of chemical reaction involves 2 or more elements combining to form one?

Chemistry
1 answer:
Vikki [24]3 years ago
6 0
Hey there!

I believe the answer is Combination (or Synthesis) Reaction. 
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The following mechanism has been proposed for the conversion of tert-butyl bromide to tert-butyl alcohol in aqueous solution: st
Gelneren [198K]

Answer:

See explanation

Explanation:

The first step in this reaction is a unimolecular reaction. It involves the formation of the carbocation. This is so because tertiary alkyl halides only undergo substitution by SN1 mechanism due to sterric crowding.

The second step in the reaction is bi molecular. In this step, the carbocation now combines with the OH^- to yield the alcohol.

Net equation of the reaction is;

(CH3)3CBr + OH^- -------> (CH3)3COH + Br^-

The intermediate here is the carbocation,  (CH3)3C^+

8 0
3 years ago
If 24.6 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 301 Kelvin and 1.01 atmosph
andreev551 [17]
Answer: 43.3 l


Explanation:

1) Chemical equation:
2 Li(s) + 2 H₂O (l) → 2LiOH(aq) + H₂ (g)

2) Mole ratios:

2 mol Li : 2 mol H₂O : 2 mol LiOH : 1 mol H₂

3) Number of moles of Li that react

n = mass in grams / atomic mass = 24.6g / 6.941 g/mol = 3.54 moles

4) Yield

Proportion:

2 mol Li / 1 mol H₂ = 3.54 mol  Li/ x


⇒ x = 3.54 mol Li × 1 mol H / 2 mol Li = 1.77 mol H₂

4) Ideal gas equation

PV = nRT ⇒ V = nRT / P

V = 1.77 mol × 0.0821 [atm×l / (mol×K)] × 301 K / 1.01 atm = 43.3 l


V = 43.3 l ← answer



7 0
3 years ago
Which of the following best describes an atomic number? An element's identity is defined by its atomic number; this means it rep
kompoz [17]
It's C, the amount of protons in the nucleus of each atom :)
4 0
3 years ago
Express 1340000 in scientific notation
Katen [24]
1.34*10^6
Move the decimal 6 times to the left, it is a number 1-10
8 0
3 years ago
Read 2 more answers
Is bleaching hair a physical or chemical change
Greeley [361]
Bleaching hair i a physical change i think; it washes the pigments out.

i hope this helps (;

8 0
3 years ago
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