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3 years ago

12. Which one of the following is not true about the reaction of: CH3-

Chemistry

1 answer:

weqwewe [10]3 years ago

7 0

Explanation:

CH₃CH₃ + Cl₂ → CH₃CH₂Cl + HCl

This reaction take place in the presence of light/UV rays. (i.e, photochemical reaction)
It's a Chlorination reaction because here there's addition of chlorine.
It's a substitution reaction because Cl substituted H from place and attach there.

Option which is NOT correct is

Option A (It's not an elimination reaction)

Therefore,

Option A is correct✔

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The reaction A + B ⟶ C + D rate = k [ A ] [ B ] 2 A+B⟶C+Drate=k[A][B]2 has an initial rate of 0.0640 M / s. 0.0640 M/s. What wil

Lubov Fominskaja [6]

Answer :

(1) The initial rate when [A] is halved and [B] is tripled is, 0.288 M/s

(2) The initial rate when [A] is tripled and [B] is halved is, 0.096 M/s

Explanation:

The given rate law expression is:

$Rate=k[A][B]^2$

Now we have to determine the initial rate when [A] is halved and [B] is tripled.

The new rate law expression will be:

$Rate=k\times (\frac{[A]}{2})\times (3\times [B])^2$

$Rate=k\times (\frac{[A]}{2})\times 9\times [B]^2$

$Rate=k\times (\frac{9}{2})\times [A]\times [B]^2$

Given:

Initial rate = 0.0640 M/s

As, Initial rate = $k[A][B]^2$ = 0.0640 M/s

Thus,

$Rate=(\frac{9}{2})\times 0.0640M/s$

$Rate=0.288M/s$

Now we have to determine the initial rate when [A] is tripled and [B] is halved.

The new rate law expression will be:

$Rate=k\times (\frac{[B]}{2})^2\times (3\times [A])$

$Rate=k\times (\frac{[B]^2}{4})\times 3\times [A]$

$Rate=k\times (\frac{3}{4})\times [A]\times [B]^2$

Given:

Initial rate = 0.0640 M/s

As, Initial rate = $k[A][B]^2$ = 0.0640 M/s

Thus,

$Rate=(\frac{3}{4})\times 0.0640M/s$

$Rate=0.096M/s$

5 0

3 years ago

Energy stored in an object because of position or condition is called ___________ energy.

marshall27 [118]

Answer:

Potential energy

7 0

3 years ago

Combining hydrogen and oxygen to make water Group of answer choices releases a lot of energy. consumes a lot of energy. releases

Firdavs [7]

Answer:

Releases a lot of energy. When hydrogen a highly reactive element reacts with oxygen, it does so using immense force, when the bonds break high amounts of emery is released.

Explanation:

5 0

4 years ago

An empty Erlenmeyer flask weighs 241.3 g. When filled with water (d = 1.00 g/cm³), the flask and its contents weigh 489.1 g. (a)

miskamm [114]

The answer is- Volume of flask = 247.8 $cm^3$ or 247.8 mL.

Density (d) is defined as mass of substance divided by its volume. Thus, if mass and density are known, then Volume can be determined.

What is the formula of volume in terms of density?

Let mass of substance be 'm' and volume be 'V'. Thus, as per the definition of density, it is expressed as-

$d = \frac{m}{V}$

Thus, volume can be expressed as-

$V =\frac{m}{d}$

Now, mass of empty flask = 241.3 g and the mass of (flask + Water) = 489.1 g.

Thus, mass of water = $489.1\ g- 241.3\ g = 247.8\ g$ .

Thus, mass of water = 247.8 g and density of water = $1.00\ g/cm^3$ . Its volume is calculated as-

$V = \frac{247.8\ g}{1.00\ g/cm^3}=247.8\ cm^3$

Hence, volume of flask = 247.8 $cm^3$ or 247.8 mL.

To learn more about Density and Volume, visit:

brainly.com/question/952755

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8 0

2 years ago

Write the equation for the dissolution of sodium carbonate in water as found in your laboratory guide.

Arisa [49]

Na₂CO₃(s) → 2Na⁺(aq) + CO₃²⁻(aq)
The sodium carbonate formed from a strong base and a weak acid. Hydrolysis is subjected to the anion of a weak acid.

CO₃²⁻ + H₂O ⇄ HCO₃⁻ + OH⁻
HCO₃⁻ + H₂O ⇄ H₂CO₃ + OH⁻

pH>7 alkaline solution

2Na⁺ + CO₃²⁻ + 2H₂O ⇄ 2Na⁺ + 2OH⁻ + H₂CO₃

3 0

3 years ago