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Ugo [173]
3 years ago
7

Why is a hydrogen bond a relatively weak bond?

Chemistry
1 answer:
DerKrebs [107]3 years ago
5 0

Hydrogen bonds are intermolecular (“between-molecule”) bonds, rather than intramolecular (“within-molecule”) bonds. They occur not only in water but in other polar molecules in which positive hydrogen atoms are attracted to negative atoms in nearby molecules. Hydrogen bonds are <em>relatively weaker</em> as chemical bonds. For example, they are much weaker than the bonds holding atoms together within molecules of covalent compounds.

Hydrogen bond is<em> weaker </em>than ionic and covalent bonds. Example: Water molecules are held to each other by intermolecular forces of attraction. Covalent bonds are the strongest bonds, meaning that atoms are actually held together by the physical sharing of electrons.

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the density of pure gold (au) is 19.3 g/cm3. what is the mass of a block of gold that measures 1.2 cm x 5.00 cm x 3.20 cm? pleas
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The density of pure gold (au) is 19.3 g/cm3. what is the mass of a block of gold that measures 1.2 cm x 5.00 cm x 3.20 cm? please show work.


Given: Density of pure gold = 19.3 g /cm^3

Measurement of block of gold =1.2 cm x 5.00 cm x 3.20 cm

To calculate : mass of gold

Formula used: Density = Mass / Volume

Volume = 1.2 cm x 5.00 cm x 3.20 cm = 19.2 cm^3

Mass of gold = Density X volume = 19.3 g /cm^3 X 19.2 cm^3  = 370.56 g

4 0
3 years ago
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A decrease in the total volume of the reaction vessel (T constant)

Explanation:

  • Le Châtelier's principle predicts that the moles of H2 in the reaction container will increase with a decrease in the total volume of the reaction vessel.
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  • In this case, a decrease in volume means there is an increase in pressure, therefore the equilibrium will shift towards the side with the fewer number of moles of gas.
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3 years ago
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