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saw5 [17]
3 years ago
12

Which of the following chemical formulas shows an ionic compound?

Chemistry
2 answers:
sveticcg [70]3 years ago
8 0
C. NaCl
sodium chloride is made up of metals and non metals
harina [27]3 years ago
4 0

Answer:

NaCI

Explanation: I TOOK THE TEST

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KATRIN_1 [288]

Answer:yes

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2 years ago
Find the boiling point temperature at 760 torr of an isomer of octane, c8h18, if its enthalpy of vaporization is 38,210 j mol-1
mixas84 [53]

According to Clausius-Clayperon equation,

ln(\frac{P_{1} }{P_{2} }) = \frac{delta H_{vap} }{R} (\frac{1}{T_{2} }-\frac{1}{T_{1} }   )

P_{1}is the vapor pressure at boiling point = 760 torr

P_{2} is the vapor pressure at T_{2} =638.43 torr

TemperatureT_{2} = 110.0^{0}C + 273 = 383 K

ΔH_{vap} = 38210 J/mol

Plugging in the values, we get

ln(\frac{P_{1} }{P_{2} }) = \frac{delta H_{vap} }{R} (\frac{1}{T_{2} }-\frac{1}{T_{1} }   )

ln\frac{760 torr}{638.43 torr} =\frac{38210 J/mol}{8.314 J/(mol.K)} (\frac{1}{383 K}-\frac{1}{T_{1} }

T_{1} = 389 K

Therefore, the boiling point of octane = 389 K - 273 = 116^{0}C

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3 years ago
Which subatomic particle plays the greatest part in determining the properties of an element?
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