Questions by JackQ7308746

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1 answer 23 views

How does the size and shape of metallic nanoparticles affect their catalytic activity in a reaction?

asked Feb 24 in Materials Chemistry

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1 answer 57 views

What hybrid orbitals are present in the molecule CH2O?

asked Feb 13 in Chemical bonding

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1 answer 75 views

What products are formed when sodium chloride (NaCl) reacts with silver nitrate (AgNO3) in a double replacement reaction?

asked Feb 13 in Chemical reactions

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1 answer 127 views

What is the effect of adding a catalyst on the equilibrium position of a redox reaction where iodate ions combine with sulfite ions in an acidic solution to create iodide ions and sulfate ions? Calculate the new equilibrium constant with and without the catalyst given the reaction equation: IO3^- (aq) + 3SO3^2- (aq) + H2O (l) → I^- (aq) + 3SO4^2- (aq) + 2H+ (aq) Assume the temperature, pressure and volume remain constant, and that the initial concentrations of each reactant and product are known.

asked Jan 30 in Chemical equilibrium

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1 answer 75 views

How can the presence of a specific compound, such as caffeine, be identified in a sample using Raman spectroscopy? What are the characteristic Raman peaks of caffeine and how can they be used to differentiate caffeine from other compounds present in the sample?

asked Jan 29 in Analytical Chemistry

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1 answer 56 views

Calculate the heat of neutralization for the reaction of 50 mL of 2.0 M hydrochloric acid and 50 mL of 2.0 M sodium hydroxide. The specific heat capacity of the solution is 4.18 J/g°C and the temperature change is 10°C.

asked Jan 23 in ThermoChemistry

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1 answer 67 views

Calculate the entropy change for the reaction of 2 moles of methane gas reacting with 4 moles of oxygen gas to form carbon dioxide gas and water vapor at a constant temperature of 298 K. The reaction is balanced and the standard entropy values for methane, oxygen, carbon dioxide, and water vapor are given as -0.242, 205.16, 213.74, and 188.72 J/K/mol, respectively.

asked Jan 23 in Chemical thermodynamics

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1 answer 62 views

Calculate the corrosion potential of a copper metal electrode in a 0.1 M CuSO4 solution at 25°C, given that the standard reduction potential of Cu2+/Cu is +0.34 V.

asked Jan 23 in ElectroChemistry

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1 answer 62 views

What is the strange situation experiment?

asked Jan 20 in Psychology

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1 answer 116 views

Why is random sampling important?

asked Jan 20 in Psychology

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0 answers 84 views

How can attitude change be achieved?

asked Jan 20 in Psychology

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1 answer 44 views

Why is the study of amnesia patients important?

asked Jan 17 in Psychology

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1 answer 18 views

When is a hypothesis considered to be rejected?

asked Jan 15 in Psychology

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1 answer 47 views

What is ethnography?

asked Jan 14 in Psychology

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1 answer 84 views

What term refers to the balance, or equilibrium, within the cell or a body, and an organism’s ability to keep a constant internal environment?

asked Jan 8 in Science

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1 answer 48 views

What organs secrete hormones that help maintain homeostasis?

asked Jan 7 in Science

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1 answer 102 views

What in science are very important so that we can compare experimental data from one lab to another and make sure we all are talking about the same thing?

asked Jan 6 in Science

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1 answer 73 views

Trash that gets into fresh and saltwater waterways is called what type of debris?

asked Jan 2 in Science

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1 answer 21 views

The reaction of calcium oxide with carbon dioxide forms what?

asked Jan 2 in Science

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1 answer 48 views

Push or pull acting on an object is also called?

asked Dec 31, 2024 in Science

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