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3 years ago

Which best represents a reaction mechanism?

Chemistry

2 answers:

Anvisha [2.4K]3 years ago

8 0

Answer : The correct option is, (C) $A+B\rightarrow products$

Explanation :

Chemical equation : It is written in such a way that the symbolic representation of the reaction represents the reaction taking place in the system.

The reactants are written on the left-hand side and the products are written on the right-hand side of the equation and the reactant and products are separated by an arrow. The two or more reactants and products are separated by “+”.

Hence, the representation of chemical reaction will be,

$A+B\rightarrow Products$

My name is Ann [436]3 years ago

6 0

The reaction that would beat represent a typical reaction mechanism is when A and B react with each other to produce certain products.

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How much water should be added to 70ml of 60 percent acid solution to dilute it to a 50 percent acid solution?

mestny [16]

Answer:

14 ml of water

Explanation:

To find the volume you need to dilute the concentration of a solution, you should use the formula C1 x V1 = C2 x V2 in which:

C1 = initial concentration ( in this case 60 %)

V1 = initial volume ( in this case 70 ml)

C2 = Final concentration ( you want to dilute until 50 %)

V2 = final volume ( the variable you want to search)

So you need to:

1.- Isolate the variable you want to find: V2 = (C1 x V1) / C2

2.- Substitute data: V2 = (60% x 70 ml) /50 %

3.- You do the math, in this case is 84 ml.

4.- Remember that you have a initial volume of 70 ml, so the difference (84 ml - 70 ml = 14 ml) is the volume you need to add to dilute your solution.

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3 years ago

What are the properties of PLA plastic PLEASE HELP

Zanzabum

Answer:

The Heat Deflection Temperature (HDT) 126 °F (52 °C)

Density 1.24 g/cm³

Tensile Strength 50 MPa

Flexural Strength 80 MPa

Explanation:.

7 0

2 years ago

. The net ionic equation for the reaction that occurs during the titration of nitrous acid with sodium hydroxide is (a) HNO2 Na

hjlf

Answer:

$H^+_{(aq)}+OH^{-}_{(aq)}\rightarrow H_2O_{(l)}$

Explanation:

Complete ionic equation : In complete ionic equation, all the substance that are strong electrolyte and present in an aqueous are represented in the form of ions.

Net ionic equation : In the net ionic equations, we are not include the spectator ions in the equations.

Only the species which are present in aqueous state dissociate.

Spectator ions : The ions present on reactant and product side which do not participate in a reactions. The same ions present on both the sides.

(a)

The balanced molecular equation will be,

$HNO_2_{(aq)}+NaOH_{(aq)}\rightarrow H_2O_{(l)}+NaNO_2_{(aq)}$

The complete ionic equation in separated aqueous solution will be,

$H^+_{(aq)}+NO_2^-_{(aq)}+Na^+_{(aq)}+OH^{-}_{(aq)}\rightarrow H_2O_{(l)}+Na^+_{(aq)}+NO_2^-_{(aq)}$

In this equation the species present are, $Na^+\text{ and }NO_2^-$ are the spectator ions.

Hence, the net ionic equation contains specie is

$H^+_{(aq)}+OH^{-}_{(aq)}\rightarrow H_2O_{(l)}$

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2 years ago

An inhibitor is added to an enzyme-catalyzed reaction at a concentration of 26.7 μM. The Vmax remains constant at 50.0 μM/s, but

fomenos

Using the Michaelis-Menten equation competitive inhibition, the Inhibition constant, Ki of the inhibitor is 53.4 μM.

<h3>What is the Ki for the inhibitor?</h3>

The Ki of an inhibitor is known as the inhibition constant.

The inhibition is a competitive inhibition as the Vmax is unchanged but Km changes.

Using the Michaelis-Menten equation for inhibition:

Kma = Km/(1 + [I]/Ki)

Making Ki subject of the formula:

Ki = [I]/{(Kma/Km) - 1}

where:

Kma is the apparent Km due to inhibitor
Km is the Km of the enzyme-catalyzed reaction
[I] is the concentration of the inhibitor

Solving for Ki:

where

[I] = 26.7 μM

Km = 1.0

Kma = (150% × 1 ) + 1 = 2.5

Ki = 26.7 μM/{(2.5/1) - 1)

Ki = 53.4 μM

Therefore, the Inhibition constant, Ki of the inhibitor is 53.4 μM.

Learn more about enzyme inhibition at: brainly.com/question/13618533

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2 years ago

When you walk, you push against the floor, and _________.

Taya2010 [7]

When you walk, you push against the floor, and t<span>he floor pushes back against you.

Answer: B. The floor pushes back agaisnt you.

Good luck with your studies, I hope this helps~!
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2 years ago