When a chemical reaction and it and reverse are occurring at the same time and at the same rate the reaction has achieved?

When a chemical reaction and it and reverse are occurring at the same time and at the same rate the reaction has achieved?
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equilibrium
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Identify the INCORRECT statement below regarding chemical equilibrium. A All chemical reactions are, in principle, reversible. B Equilibrium is achieved when the forward reaction rate equals the reverse reaction rate. C Equilibrium is achieved when the concentrations of species become constant. D Equilibrium is achieved when the reaction quotient, Q, equals the equilibrium constant. E Equilibrium is achieved when reactant and product concentrations are equal.

Description : Identify the INCORRECT statement below regarding chemical equilibrium. A All chemical reactions are, in principle, reversible. B Equilibrium is achieved when the forward reaction rate equals the ... equilibrium constant. E Equilibrium is achieved when reactant and product concentrations are equal.

Last Answer : E Equilibrium is achieved when reactant and product concentrations are equal.

Which one is the rate controlling step in a solid-gas non-catalytic reaction occurring at very high temperature? (A) Pore diffusion (B) Film diffusion (C) Ash layer diffusion (D) Chemical reaction

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Last Answer : (B) Film diffusion

In the case of malignant melanoma occurring intra orally, which of the following is true: a. Uncommon on the palate when occurs intra orally. b. Should not biopsied, as this will increase metasis . c. The 5 year survival rate is 20%. d. The incidence of oral melanoma is the same as those on the skin. e. Commonly occurs intra orally.

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Last Answer : c. The 5 year survival rate is 20%.

In the case of malignant melanoma occurring intra orally, which of the following is true: A. Uncommon on the palate when occurs intra orally B. Should not biopsied, as this will increase metasis C. The 5 years survival rate is 20% D. The incidence of oral melanoma is the same as those on the skin E. Commonly occurs intra orally

Description : In the case of malignant melanoma occurring intra orally, which of the following is true: A. Uncommon on the palate when occurs intra orally B. Should not biopsied, as this will increase metasis ... The incidence of oral melanoma is the same as those on the skin E. Commonly occurs intra orally

Last Answer : C. The 5 years survival rate is 20%

What are the consequences of shifting the chemical equilibrium of the formation of bicarbonate from carbon dioxide and water towards the consumption of products of the reverse reaction?

Description : What are the consequences of shifting the chemical equilibrium of the formation of bicarbonate from carbon dioxide and water towards the consumption of products of the reverse reaction?

Last Answer : The shifting of the chemical equilibrium of the formation of bicarbonate from carbon dioxide and water into the reverse reaction (production of water and carbon dioxide) means spending of hydrogen ions and thus it increases the solution pH.

Reverse reaction in a chemical equilibrium is favoured by the (A) Removal of one of the products regularly (B) Increase in the concentration of one of the products (C) Increase in the concentration of one of the reactants (D) None of these

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Last Answer : (B) Increase in the concentration of one of the products

Which of the following will favour the reverse reaction in a chemical equilibrium reaction? (A) Increasing the concentration of one of the reactants (B) Increasing the concentration of one or more of the products (C) Removal of at least one of the products at regular interval (D) None of these

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Last Answer : A. Glucuronidation

The equilibrium constant for the gas phase reactio A + B = C + D is 10-3. The rate of the forward reaction is 10-11 cubic centimeters per molecule per second. What is the rate constant of the reverse reaction? w) 10 cubic centimeters per molecule per second x) 10-8 cubic centimeters per molecule per second y) 10-10 cubic centimeters per molecule per second z) 10-14 cubic centimeters per molecule per second

Description : The equilibrium constant for the gas phase reactio A + B = C + D is 10-3. The rate of the forward reaction is 10-11 cubic centimeters per molecule per second. What is the rate constant of ... second y) 10-10 cubic centimeters per molecule per second z) 10-14 cubic centimeters per molecule per second

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An investment pays Rs.300 annually for five years, with the first payment occurring today. The present value of the investment discounted at a 4% annual rate is approximately __________. a) Rs.1336 b) Rs.1389 c) Rs.1625 d) Rs.1925

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Last Answer : (D) t = 800 s

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Batch process is preferred over continuous process, when the (A) Product yields and quality cannot be achieved in continuous process, because of long residence time (B) Sales demand of product is not steady (C) Same equipment cannot be used for several processes of the same nature (D) All (A), (B) & (C)

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Last Answer : (B) Sales demand of product is not steady

Bleeding complications are frequently associated with fibrinolytic therapy. Which of the following statement(s) concerning complications of fibrinolytic therapy is/are true? a. Careful monitoring of prothrombin time and aPTT time are necessary to avoid bleeding complications b. A level of serum fibrinogen less than 100 mg/dl is associated with an increased risk of bleeding c. Recent (less than 10 days) major surgery is a contraindication to systemic but not regional fibrinolytic therapy d. A patient with a cerebrovascular event occurring less than two months ago can be treated with fibrinolytic therapy if head CT scan is normal

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The number of waves occurring in unit time is called

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The emergence of land plants is generally accepted as occurring during what period on the geologic time scale: w) Cretaceous x) Triassic y) Permian z) Silurian

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If you need to reverse the following reaction and multiply it by 2 in order for it to be an intermediate reaction in a Hess's law problem what would be the final value for the enthalpy of reaction yo?

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Last Answer : 2820 kJ

If you need to reverse the following reaction in order for it to be an intermediate reaction in a Hess's law problem what would be the final value for the enthalpy of rea?

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Last Answer : Answer: D

if the equilibrium constant for the reaction is 4.0, what will be the equilibrium constant for the reverse reaction.

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Pick out the correct statement. (A) A catalyst speeds up the forward reaction but slows shown the reverse reaction (B) Addition of catalyst changes the equilibrium constant (C) Pressure changes do not change the equilibrium concentrations (D) The composition of equilibrium is changed by catalyst

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What hatch would be going occurring on Lake Washington today?

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