Homework Answers
Ans- (D) Heterogeneous Catalysts
Acatalytic converter is a device used to reduce the emissions from an internal combustion engine (used in most modern day automobiles and vehicles).
It is filled with a chemical catalyst, usually a platinum and palladium mixture, and helps to convert the vehicle's emissions into non-harmful gasses.
Add Answer to:
25) are used in automotive catalytic converters. A) Enzymes B) Noble gases C) Nonmetal oxides D)...
21. Which of the following is not a function of carbohydrates? A) They are catalytic components of enzymes B) They...
21. Which of the following is not a function of carbohydrates? A) They are catalytic components of enzymes B) They play key roles in processes that take place on the surface of cells C) They are major energy sources D) They are used in structural roles Section: 11.1 22. Carbohydrates are A) aldehydes with two or more hydroxyl groups C) acids with two or more hydroxyl groups E) A and B B) ketones with two or more hydroxyl groups D)...
45. a) Chalcogens b) Alkali metals c) Alkaline carth metals d) Halogens c) Noble gases 46....
45. a) Chalcogens b) Alkali metals c) Alkaline carth metals d) Halogens c) Noble gases 46. When the cquation: AINOh+NaS a) 2,3,1,6 b) 2,1,3,2 c) 4,6,3,2 d) 2,3,2,3 47 reaction a) NH4CI NH3 + HCI b) 2Mg+02 2Mgo c) 2N2+3H2 2NH3 d) 2CH4 + 402-2C02+4H20 48. Which of the following are combustion reactions? CH4 (g) + O2 (g) → CO2 (g) + H 201) b) a) CaO (s)+ CO2 (g)-CaCO3 (s) c) A. 1 and 4 B. 1,2,3 and4 C....
Classify each element as a metal, nonmetal, or semimetal. a) Kr b) Te c) Al d)...
Classify each element as a metal, nonmetal, or semimetal. a) Kr b) Te c) Al d) Ba e) Fe f) F
This is a water resources problem. Answer asap For the formation in the following figure K is and And K2-- (choose from A to D) Kx (choose from E to G) A isotropic B. anisotropic C. homogeneous D....
This is a water resources problem. Answer asap
For the formation in the following figure K is and And K2-- (choose from A to D) Kx (choose from E to G) A isotropic B. anisotropic C. homogeneous D. heterogeneous G. Kz and Kx are different. Cannot determine which is bigger. 수Kz. Kx
For the formation in the following figure K is and And K2-- (choose from A to D) Kx (choose from E to G) A isotropic B. anisotropic C....
The ________ ion has a noble gas electron configuration. a) Mg^+ b) Li^- c) Li^2- d)...
The ________ ion has a noble gas electron configuration. a) Mg^+ b) Li^- c) Li^2- d) Al^3+ e) B
Protein kinases can A) Inactivate enzymes by dephosphorylating them B) Activate enzymes by phosphorylating them C)...
Protein kinases can A) Inactivate enzymes by dephosphorylating them B) Activate enzymes by phosphorylating them C) Cleave proteins after Tyr, Ser, or Thr residues D) Contain a catalytic triad to cut peptide bonds Peanut oil contains a high percentage of monounsaturated fatty acids whereas vegetable oil contains a high percentage of polyunsaturated fatty acids. During a cold spell, the peanut oil freezes whereas the vegetable oil remains liquid. Explain why. Predict which one of the following organisms will have the...
A chemical reaction has reached equilibrium when A) the concentrations of reactants and products are equal. B) all...
A chemical reaction has reached equilibrium when A) the concentrations of reactants and products are equal. B) all reactants have been converted to products. all products have been removed from the reaction mixture. D) the catalyst has been used up. E) the rate of the forward reaction equals the rate of the reverse reaction. 6) An equilibrium in which all the components are gases is a A) heterogeneous equilibrium. D) homogeneous B) liquid C) catalytic E) reversible 7) The equilibrium...
23. Which set of gases is listed from lowest to highest root-mean-square speed at 25°C? a....
23. Which set of gases is listed from lowest to highest root-mean-square speed at 25°C? a. Kr< CO2 <NO2 < SF d. SF6 <Kr<NO2 <CO2 b. SF6 <NO, <CO2 <Kr e. CO2 <NO, <Kr <SF c. SF6<Kr <CO2 <NO2 24. Which set of gases is listed from fastest to slowest effusion rate? a. N2O > NO2 > NO > N204 d. NO > NO2 >N,O > N204 b. NO > N20 > NO2 > N204 e. N204 > N20 >...
22. Which of the following are common gases used for shielding in are welding? c. Oxygen...
22. Which of the following are common gases used for shielding in are welding? c. Oxygen a. Nitrogen b. Hydrogen f. Helium d. Argon e. Propane 23. What are the various surface hardening methods? Draw a schematic of ONE of them 24. Which of the following is/are NOT the usual objective(s) of heat treatment? a. Relieve stresses b. increase melting temperature c. reduce brittleness d. reduce density e. increase hardness f. increase recrystallization temperature 12
Each of the following are true of enzymes a. they can only be used once b. they all require coenzymes c. they increase t...
Each of the following are true of enzymes a. they can only be used once b. they all require coenzymes c. they increase the activation energy of a reaction d. none of the above
21. Which of the following is not a function of carbohydrates? A) They are catalytic components of enzymes B) They play key roles in processes that take place on the surface of cells C) They are major energy sources D) They are used in structural roles Section: 11.1 22. Carbohydrates are A) aldehydes with two or more hydroxyl groups C) acids with two or more hydroxyl groups E) A and B B) ketones with two or more hydroxyl groups D)...
45. a) Chalcogens b) Alkali metals c) Alkaline carth metals d) Halogens c) Noble gases 46. When the cquation: AINOh+NaS a) 2,3,1,6 b) 2,1,3,2 c) 4,6,3,2 d) 2,3,2,3 47 reaction a) NH4CI NH3 + HCI b) 2Mg+02 2Mgo c) 2N2+3H2 2NH3 d) 2CH4 + 402-2C02+4H20 48. Which of the following are combustion reactions? CH4 (g) + O2 (g) → CO2 (g) + H 201) b) a) CaO (s)+ CO2 (g)-CaCO3 (s) c) A. 1 and 4 B. 1,2,3 and4 C....
This is a water resources problem. Answer asap
For the formation in the following figure K is and And K2-- (choose from A to D) Kx (choose from E to G) A isotropic B. anisotropic C. homogeneous D. heterogeneous G. Kz and Kx are different. Cannot determine which is bigger. 수Kz. Kx
For the formation in the following figure K is and And K2-- (choose from A to D) Kx (choose from E to G) A isotropic B. anisotropic C....
Protein kinases can A) Inactivate enzymes by dephosphorylating them B) Activate enzymes by phosphorylating them C) Cleave proteins after Tyr, Ser, or Thr residues D) Contain a catalytic triad to cut peptide bonds Peanut oil contains a high percentage of monounsaturated fatty acids whereas vegetable oil contains a high percentage of polyunsaturated fatty acids. During a cold spell, the peanut oil freezes whereas the vegetable oil remains liquid. Explain why. Predict which one of the following organisms will have the...
A chemical reaction has reached equilibrium when A) the concentrations of reactants and products are equal. B) all reactants have been converted to products. all products have been removed from the reaction mixture. D) the catalyst has been used up. E) the rate of the forward reaction equals the rate of the reverse reaction. 6) An equilibrium in which all the components are gases is a A) heterogeneous equilibrium. D) homogeneous B) liquid C) catalytic E) reversible 7) The equilibrium...
23. Which set of gases is listed from lowest to highest root-mean-square speed at 25°C? a. Kr< CO2 <NO2 < SF d. SF6 <Kr<NO2 <CO2 b. SF6 <NO, <CO2 <Kr e. CO2 <NO, <Kr <SF c. SF6<Kr <CO2 <NO2 24. Which set of gases is listed from fastest to slowest effusion rate? a. N2O > NO2 > NO > N204 d. NO > NO2 >N,O > N204 b. NO > N20 > NO2 > N204 e. N204 > N20 >...
22. Which of the following are common gases used for shielding in are welding? c. Oxygen a. Nitrogen b. Hydrogen f. Helium d. Argon e. Propane 23. What are the various surface hardening methods? Draw a schematic of ONE of them 24. Which of the following is/are NOT the usual objective(s) of heat treatment? a. Relieve stresses b. increase melting temperature c. reduce brittleness d. reduce density e. increase hardness f. increase recrystallization temperature 12
Most questions answered within 3 hours.
-
A baseball batter hits a 0.145kg baseball straight up into the
air. The baseball leaves the...
asked 23 minutes ago -
An FM modulator is tested using
single-tone baseband signal with frequency of 50kHz and a sprectrum...
asked 42 minutes ago -
Write the ionic equations for the first stage of salts
hydrolysis.
Anion, Cation?
Na2S
NiSO4
K2SO4...
asked 2 hours ago -
suppose there is a normally distributed population with a mean of
250 and a standard deviation...
asked 2 hours ago -
Question Three
Suppose you as project manager are using the Waterfall
development methodology on a large...
asked 3 hours ago -
Which statement is not true about welfare in Canada?
A.Benefits typically vary based on one's ability...
asked 4 hours ago -
Please help me with FLOWCHART and UML diagram for class,
thank you!
#include <iostream>
#include <fstream>...
asked 5 hours ago -
3. Describe the “logic circuit” of the Lac operon. Which
proteins are bound or not to...
asked 5 hours ago -
Ayesha’s adjusted gross income is $60,000 in 2019. She donated a
piece of artwork with a...
asked 5 hours ago -
For Dijkstra’s shortest path algorithm:
a. Give the Big-O time for Dijkstra’s shortest path algorithm
and...
asked 5 hours ago -
Phosphorus violates the 'octet rule' in biological molecules,
forming more covalent bonds than expected based on...
asked 5 hours ago -
A 1.3 eV electron has a 10-4 probability of tunneling
through a 2.4 eV potential barrier....
asked 5 hours ago