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Vaselesa [24]
3 years ago
5

Distinguish between metals, ionic compounds, and covalent compounds using information about the physical properties of a compoun

d. Distinguish between metals, ionic compounds, and covalent compounds using the empirical formula of a compound.
Chemistry
1 answer:
sineoko [7]3 years ago
7 0

Distinguish between metals, ionic compounds, and covalent compounds using information about the physical properties of a compound.

Metal Compounds:

  • Metal compounds have very High melting and boiling points
  • They are good Conductors of heat and electricity
  • They can be converted into different shapes without any breakage.
  • They are ductile and magnetic.

Ionic compounds

  • Ionic compounds exist in a crystalline structure that is stable. Hence, they higher melting and boiling points than covalent compounds.
  • They don't conduct electricity when they are as ionic compounds. But, when they are dissolved in water the solution becomes conductor of electricity.
  • These compounds exist as solids only.
  • These compounds are Non magnetic.

Covalent compounds

  • They have lower belting and boiling points when compared to ionic bonds.
  • Covalent compounds are non conductor of electricity.
  • They can take any form like liquid, solid or gas.
  • They are  Non magnetic.

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kolbaska11 [484]

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r = 3.61x10^{-6} M/s

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K is the constant of the reaction, and doesn't depends on the concentrations. First, let's find the coefficients x and y. Let's use the first and the second experiments, and lets divide 1º by 2º :

\frac{r1}{r2} = \frac{0.018^{x} x0.036^{y} }{0.027^xx0.036^y}

\frac{2.6x10^{-6}}{3.9x10^{-6}} = (\frac{0.018}{0.027})^xx(\frac{0.036}{0.036})^y

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Now, to find the coefficient y let's do the same for the experiments 1 and 3:

\frac{r1}{r3} = \frac{0.018x0.036^y}{0.036x0.054^y}

\frac{2.6x10^{-6}}{7.8x10^{-6}} = (\frac{0.018}{0.036})x(\frac{0.036}{0.054})^y

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Now, we need to calculate the constant k in whatever experiment. Using the first :

2.6x10^{-6} = kx0.018x0.036kx6.48x10^{-4} = 2.6x10^{-6}

k = 4.01x10^{-3} M^{-1}s^{-1}[/tex]

Using the data given,

r = 4.01x10^{-3}x1.8x10^{-2}x5.0x10^{-2}

r = 3.61x10^{-6} M/s

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