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MaRussiya [10]
3 years ago
12

What are the horizontal rows of the periodic table called?

Chemistry
2 answers:
r-ruslan [8.4K]3 years ago
8 0
A because there are 7 horizontal rows
Over [174]3 years ago
3 0

Answer:

The horizontal rows in the periodic table are periods, while the vertical rows are called groups.

Explanation:

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Find the mass of a 60 ML volume of water if the density of water is 1 g/mL
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For a solution of H2SO4, determine the van\'t Hoff factor assuming 0% ionization and 100% ionization
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7 0
3 years ago
Read 2 more answers
For the reaction N2(g) + O2(g)2NO(g) H° = 181 kJ and S° = 24.9 J/K G° would be negative at temperatures (above, below) K. Enter
12345 [234]

ΔG deg will be negative above 7.27e+3 K.

<u>Explanation:</u>

  • The ΔG deg with the temperature can be found using the formula and the formula is given below
  • ΔG deg = ΔH deg - T ΔS deg
  • Given data, ΔH deg = 181kJ and ΔSdeg=24.9J/K
  • -T ΔS deg will be always negative and ΔG deg = ΔH deg  will  be  positive and ΔG deg will be negative at relatively high temperatures and positive at relatively low temperatures
  • solving the equation and substitute  ΔGdeg=0
  • ΔGdeg = ΔHdeg - T ΔSdeg
  • T= ΔHdeg/ΔSdeg
  • T=181 kJ / 2.49e-2 kJK-1
  • By simplification we get
  • T=7.27 × 10^3 K.
  • Therefore, Go will be negative above   7.27 × 10^3 K
  • Since ΔG deg = -RT lnK, when ΔGdeg < 0, K > 1 so the reaction will have K > 1 above 7.27 × 10^3 K.
  • ΔG deg will be negative above 7.27e+3 K.

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7 0
3 years ago
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