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3 years ago

Which factor determine the reactivity of alkyl halide

Chemistry

1 answer:

Pavel [41]3 years ago

6 0

Answer:

This reactivity order reflects both the strength of the C–X bond, and the stability of X(–) as a leaving group, and leads to the general conclusion that alkyl iodides are the most reactive members of this functional class.

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Hey student made a model of a river in a sandbox a pile of sand represents soil and bits of rocks in the riverbed water pouring

daser333 [38]

Answer:

The model is missing plants, fish and other details found in a real river

The model is much smaller then a real river

Explanation:

8 0

3 years ago

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Can you calculate the energy needed to increase the temperature of 100kg of iron by 40°C?

VLD [36.1K]

Answer: 177600 J or 177.6kJ

Explanation:

For this problem, we need to use q = mcAT

we have m = 10000, and AT= 40. The specific heat of iron is 0.444.

So now we can plug it in: q = 10000*.444*40 = 177600 J or 177.6kJ

3 0

3 years ago

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A roller coasters velocity at the top of a hill is 21mls. Two seconds later it reaches the bottom of the hill with a velocity of

hodyreva [135]

Answer:

7.5 m/s²

Explanation:

The following data were obtained from the question:

Initial velocity (u) = 21 m/s

Final velocity (v) = 36 m/s

Time (t) = 2 secs

Acceleration (a) =..?

The acceleration of an object is simply defined as the rate of change of velocity of the object with time. Mathematically, it is represented as:

Acceleration (a) = (final velocity (v) – initial velocity (u)) / time (t)

a = (v – u)/t

With the above formula, we can determine the acceleration of the roller coaster as follow:

a = (v – u)/t

a = (36 – 21)/2

a = 15/2

a = 7.5 m/s²

Therefore, the acceleration of the roller coaster is 7.5 m/s².

4 0

3 years ago

Consider the following multistep reaction:

chubhunter [2.5K]

The question is incomplete, here is the complete question:

Consider the following multistep reaction:

C+D⇌CD (fast)

CD+D→CD₂ (slow)

CD₂+D→CD₃ (fast)

C+3D→CD₃

Based on this mechanism, determine the rate law for the overall reaction.

Answer: The rate law for the reaction is $\text{Rate}=k'[C][D]^2$

Explanation:

Rate law is the expression which is used to express the rate of the reaction in terms of the molar concentration of reactants where each term is raised to the power their stoichiometric coefficient respectively from a balanced chemical equation.

In a mechanism of the reaction, the slow step in the mechanism determines the rate of the reaction.

For the given chemical reaction:

$C+3D\rightarrow CD_3$

The intermediate reaction of the mechanism follows:

Step 1: $C+D\rightleftharpoons CD;\text{ (fast)}$

Step 2: $CD+D\rightarrow CD_2;\text{(slow)}$

Step 3: $CD_2+D\rightarrow CD_3;\text{(fast)}$

As, step 2 is the slow step. It is the rate determining step

Rate law for the reaction follows:

$\text{Rate}=k[CD][D]$ ......(1)

As, [CD] is not appearing as a reactant in the overall reaction. So, we apply steady state approximation in it.

Applying steady state approximation for CD from step 1, we get:

$K=\frac{[CD]}{[C][D]}$

$[CD]=K[C][D]$

Putting the value of [CD] in equation 1, we get:

$\text{Rate}=k.K[C][D]^2\\\\\text{Rate}=k'[C][D]^2$

Hence, the rate law for the reaction is $\text{Rate}=k'[C][D]^2$

5 0

3 years ago

What is the relationship between plants soil and fertilizers?

natta225 [31]

Answer: “ They add organic matter contributing to soil health increasing both the water-holding capacity and cation exchange capacity. They stimulate microbial activity and improve soil structure. Organic fertilizers also are valuable sources of micronutrients to plants. “ (the person above is correct)

3 0

3 years ago