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44. Calculate how many grams of rust (FeO) should form when 10.0g of iron reacts with 20.0g of oxygen. 4Fe +30,→ 2Fe 0,

Anton Matosov asked Sep 27, 2024

by Anton Matosov

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the reaction between nadh and ubiquinone is exergonic, but the reaction, when catalyzed by na -nqr, does not generate much heat in vivo. what factor accounts for this difference? the reaction catalyzed

Elias Meireles asked Sep 27, 2024

by Elias Meireles

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How to know how many bonds transition metals make

Timaktimak asked Sep 27, 2024

by Timaktimak

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Consider these hypothetical chemical reactions: A⇌B,ΔG= 14.3 kJ/mol B⇌C,ΔG= -30.2 kJ/mol C⇌D,ΔG= 6.20 kJ/mol What is the free energy, ΔG, for the overall reaction, A⇌D?

Stephan Leroux asked Sep 27, 2024

by Stephan Leroux

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Expiain the following: a) The ionization energy of Be is larger than Mg. Be > Mg D) Alkali metals impart characteristic color to the flame. c) It is difficult to remove the second valence electron than

Comdiv asked Sep 27, 2024

by Comdiv

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Of the following, ______ is a valid statement of Charles' law. A. PV = constant B. V/T = constant C. V = constant *P D. V = constant * n E. P/T = constant

Green Lei asked Sep 27, 2024

by Green Lei

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3 votes

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Adding energy to water with electricity and flammability test observations?

Remcycles asked Sep 27, 2024

by Remcycles

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1 vote

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James burnt 25 g of calcium in air to produce calcium oxide according to the reaction: 2Ca(s) + O_2(g) 2CaO(s). After the reaction, James found that the mass of calcium oxide produced was 35 g. Given this

EHerman asked Sep 27, 2024

by EHerman

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2 votes

204k views

What word best describes the solution outside of the bag when a scientist dissolves some sugar in a liter of water and then places some of this solution into a dialysis bag, tying both ends shut, and then

Bharata asked Sep 27, 2024

by Bharata

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A 20.00-ml sample of a weak monoprotic acid is titrated with 0.0603 m naoh. at the endpoint, it is found that 43.98 ml of titrant was used. what was the concentration of the weak acid? A. 0.0274m B. 2.

Vina asked Sep 27, 2024

by Vina

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The pKa of acetic acid is 4.75. What is the ratio of the concentration of sodium acetate to the concentration of acetic acid at pH 5.75? Sodium acetate/acetic acid=?

Savita asked Sep 27, 2024

by Savita

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For the majority of minerals, the streak color obtained when the mineral is scratched against a porcelain plate is ____________. a. likely to be diagnostic only if the mineral is hard enough to scratch

Gothiquo asked Sep 27, 2024

by Gothiquo

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4Al(s) +3O2(g) -> 2Al2O3(s) It takes 1.70 L of pure oxygen gas at STP to react completely with a certain sample of aluminum. What is the mass of alumni reacted in grams

Ryoichiro Oka asked Sep 27, 2024

by Ryoichiro Oka

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EDTA is not a preferred anticoagulant for plasma chemistry samples because it: A) Enhances coagulation B) Causes hemolysis C) Interferes with clotting factors D) Inhibits platelet function

Robert Pankowecki asked Sep 27, 2024

by Robert Pankowecki

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138k views

Which of the following best describes why [Ar]4s13d10 is the best electron configuration for copper (Cu), instead of [Ar]4s23d9? A) A completely filled d shell is appreciably more stable than the latter

Govin asked Sep 27, 2024

by Govin

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____ - element that has the property of shiny luster, ductility, and malleability

Laney asked Sep 27, 2024

by Laney

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Which step in an enzyme-catalyzed reaction was assumed to be negligible by Michaelis and Menten? A. Formation of the enzyme-substrate complex. B. Breakdown of the enzyme-substrate complex. C. Formation

Bob Herrmann asked Sep 27, 2024

by Bob Herrmann

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Since you cannot make a primary carbocation with alkylation, how do you add alkyl chains onto the aromatic ring on the primary carbon?

Giorgio Aresu asked Sep 27, 2024

by Giorgio Aresu

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1 answer

5 votes

231k views

What are characteristics of a moist, unstable air mass? a) Clear skies and calm conditions b) Stable atmospheric conditions c) Potential for thunderstorms and heavy precipitation d) Cool and dry conditions

David ROSEY asked Sep 27, 2024

by David ROSEY

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Use the standard reaction enthalpies given below to determine δHrxn for the reaction 2NO(g)+O2 (g)→2NO2(g): a) δHrxn =114kJ b) δHrxn=216kJ c) δHrxn =−114kJ d) δHrxn =−216kJ

WTEDST asked Sep 27, 2024

by WTEDST

7.8k points

1 answer

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