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Kipish [7]
4 years ago
14

Tornadoes can be identified and tracked using advanced instruments that can detect small changes in wind velocity and air pressu

re. What benefit do these instruments provide?
A.
They can predict tornadoes weeks in advance.
B.
They can change the path of a tornado.
C.
They can be used to issue early tornado warnings.
D.
They can prevent most tornadoes from forming.
Chemistry
1 answer:
Crank4 years ago
4 0
C would be the only logical answer if you really think about what it’s saying about the instrument.
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When 1.14 g of octane (molar mass = 114 g/mol) reacts with excess oxygen in a constant volume calorimeter, the temperature of th
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Pyridine is a weak base that is used in the manufacture of pesticides and plastic resins. It is also a component of cigarette sm
vladimir2022 [97]

Answer:

pH = 9.29

Explanation:

  • C5H5N + H2O ↔ C5H5NH+  +  OH-

∴ pKb = 8.75 = - Log Kb

⇒ Kb = 1.7783 E-9 = [OH-][C5H5NH+]/[C5H5N]

mass balance:

⇒ <em>C</em> C5H5N = 0.215 M = [ C5H5N ] + [C5H5NH+]

charge balance:

⇒ [OH-] = [C5H5NH+]

⇒ Kb = 1.7783 E-9 = [OH-]² / ( 0.215 - [OH-] )

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5 0
3 years ago
Ammonia and hydrogen fluoride both have unusually high boiling points due to
nexus9112 [7]

Answer:

C. hydrogen bonding

Explanation:

Ammonia and hydrogen fluoride are both able to exhibit hydrogen bonding due to containing nitrogen (in ammonia) and fluoride (obviously in hydrogen fluoride). Remember the unique qualities of NOF. :)

5 0
4 years ago
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