In which of these substances is hydrogen bonding likely to play an important role in determining physical properties: methane(CH4), hydrazine (H2NNH2), methyl fluoride (CH3F), hydrogen sulfide (H2S)?
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In which of these substances is hydrogen bonding likely to play an important role in determining physical properties: methane
(CH4), hydrazine (H2NNH2), methyl fluoride (CH3F), hydrogen sulfide (H2S)?
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- In a hydrogen molecule, the two hydrogen atoms are held together by a single bond with a bond energy of 436 kJ/mol of hydrogen. In other words, to break the H-H bonds in one mole of molecular hydrogen requires the expenditure of 436 kJ of energy. Using the balanced chemical equation for the formation of water from oxygen and hydrogen (shown above), and interpreting the stoichiometric coefficients as mole amounts, how much energy must be expended in breaking the H-H bonds? kJExplain each of these properties of water, and describe how each is conferred by the dipolar nature of a water molecule: high specific heat capacity; high heat of vaporization; unique density behavior; high surface tension; capacity to be a good solvent for ions of salts.Hydrogen bonding occurs between O oxygen atoms of different water molecules hydrogen and oxygen of the same water molecule a hydrogen on one water molecule and an oxygen on another water molecule O hydrogen atoms of different water molecules
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- Define valency by taking examples of silicon and sulphur?A می 5. (a) Describe the location of the bonding electrons in solids that have (A) ionic, (B) covalent, and (C) metallic bonding. (b) Using the periodic table, calculate the percent ionic character of the interatomic bonds for the material CsCl. (c) Explain why hydrogen fluoride (HF) has a higher boiling temperature than hydrogen chloride (HCl) (19.4 vs. −85 °C), even though HF has a lower molecular weight.Which compound has the highest melting point: NaCl, CH 4, or H 2SO 4?