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What is the bond length between the oxygen atom (O) and the hydrogen atom (H) in a water molecule (H2O) assuming that the bond between H and O is covalent? Provide your answer in picometers (pm) and express it to three significant figures.

asked Feb 18 in Chemical bonding by PatsyRubin2 (2.2k points)

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What is the balanced chemical equation for the synthesis reaction between magnesium and oxygen gas to form magnesium oxide?

asked Feb 17 in Chemical reactions by GracieGainfo (2.2k points)

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What is the equilibrium constant for the reaction between nitrogen gas and hydrogen gas to form ammonia gas at 500°C given that the equilibrium concentrations are [N2] = 0.25 M, [H2] = 0.20 M and [NH3] = 0.10 M?

asked Feb 17 in Chemical equilibrium by Barney65731 (1.4k points)

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What is the balanced chemical equation for the double replacement reaction between sodium hydroxide and lead (II) nitrate?

asked Feb 17 in Chemical reactions by LawrenceMcGr (1.8k points)

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What is the activation energy of the reaction between hydrogen peroxide and iodide ions, given that the rate constant at 25°C is 0.068 s^-1 and the activation energy is 75 kJ/mol?

asked Feb 17 in Chemical kinetics by OtisBrumbaug (1.8k points)

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What is the balanced chemical equation for the synthesis of magnesium oxide from its constituent elements?

asked Feb 17 in Chemical reactions by LuzGerste41 (1.9k points)

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What is the balanced chemical equation for the decomposition of potassium chlorate (KClO3) that yields potassium chloride (KCl) and oxygen gas (O2)?

asked Feb 17 in Chemical reactions by OfeliaDelmon (1.8k points)

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How does the addition of a strong base affect the ionization of acetic acid? Provide a detailed explanation of the resulting shift in equilibrium and the effect on pH.

asked Feb 17 in Chemical equilibrium by TimNakamura (2.0k points)

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How does the absorption of light by molecules and materials affect their molecular structure and reactivity, and how can this knowledge be utilized in developing new materials for applications such as solar panels or sensors?

asked Feb 17 in Quantum Chemistry by WilheminaBel (2.0k points)

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What is the balanced chemical equation for the reaction of hydrochloric acid (HCl) with sodium bicarbonate (NaHCO3) resulting in the evolution of carbon dioxide gas (CO2)?

asked Feb 17 in Chemical reactions by LucieFernand (2.0k points)

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How does the adsorption energy of a gas molecule on a metal surface change as the metal's electronic properties vary, and how can Density Functional Theory (DFT) calculations be used to predict and optimize this behavior?

asked Feb 17 in Computational Chemistry by AlineBentham (2.1k points)

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What is the balanced chemical equation for the reaction of hydrochloric acid and sodium bicarbonate that results in the evolution of carbon dioxide gas?

asked Feb 17 in Chemical reactions by ClementMackr (2.5k points)

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How does temperature affect the rate of a catalytic reaction in the presence of an enzyme catalyst?

asked Feb 17 in Physical Chemistry by HughNewquist (2.3k points)

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How would the addition of a strong acid affect the ionization of acetic acid, a weak acid? And how would this effect differ from the addition of a strong base?

asked Feb 17 in Chemical equilibrium by FionaGreenbe (1.8k points)

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How does the addition of a strong acid or base affect the ionization of a weak acid or base and what is the resulting change in equilibrium concentration of ions in a solution? Provide an example with relevant calculations.

asked Feb 17 in Chemical equilibrium by LizaSwenson (1.7k points)

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What is the bond enthalpy of a carbon-hydrogen (C-H) bond in methane (CH4), given that the energy required to break a mole of C-H bonds in methane is 413 kJ/mol?

asked Feb 18 in Chemical bonding by RoderickKyle (2.4k points)

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How does the adsorption behavior of oxygen molecules on a copper surface change with the surface coverage and the presence of defects, as predicted by density functional theory calculations?

asked Feb 17 in Computational Chemistry by JudithMackni (2.3k points)

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What is the activation energy for the acid-catalyzed hydrolysis of sucrose at 25°C?

asked Feb 17 in Chemical kinetics by MarcellaR325 (2.2k points)

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What is the best catalyst and reaction conditions for the synthesis of polyvinylpyrrolidone from vinylpyrrolidone monomer, in terms of high yield and low impurities?

asked Feb 17 in Chemical synthesis by JewelSchaffe (1.8k points)

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What is the balanced chemical equation for the reaction between hydrochloric acid and sodium hydroxide, and what is the concentration of H+ and OH- ions in the resulting solution?

asked Feb 17 in Chemical reactions by MarcyVallejo (2.2k points)

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