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iVinArrow [24]
3 years ago
7

An isotope of cesium has 55 protons and 78 neutrons. What is the mass number of this isotope?

Chemistry
1 answer:
mixer [17]3 years ago
4 0

The only stable caesium isotope is 133Cs, with 78 neutrons.

Hope this answers your Q

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By being an alternative route to the reaction with a lower activation energy.
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What is the ph of a solution labeled .30 trimethylamine k for trimethylamine is 7.42 x 10^4
valentina_108 [34]

Answer:the pH is 12

Explanation:

First We need to understand the structure of trimethylamine

Due to the grades of the bond in the nitrogen with a hybridization sp3 is 108° approximately, then is generated a dipole magnetic at the upper side of the nitrogen, this dipole magnetic going to attract a hydrogen molecule of the water making the water more alkaline

C3H9N+ H2O --> C3H9NH + OH-

k=\frac{[C3H9NH]*[OH-]}{[C3H9N]}

Then:

The concentration of the trimethylamine is 0.3 and the concentration of the ion C3H9NH is equal to the OH- relying on the stoichiometric equation. We could find the concentration of the OH- ion with the square root of the multiplication between k and the concentration of trimethylamine

[OH-]=\sqrt{ 0.3*7.42x10^{-4}}

[OH-]=0.01

pH=14-(-log[OH-])

pH=12

5 0
3 years ago
What are 3 things an Apple, Knife and Mirror have in common? 
s2008m [1.1K]
1)They are all take up space.
2)They all have mass.
3)They are all solids.

Because of 1 and 2, they are all matter.
7 0
3 years ago
2. Which pair of elements does not form an ionic bond?
Gekata [30.6K]

\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}

Actually Welcome to the concept of Bond Formation.

Answer is :-

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These both are Non-Metals with high Electronegativity nature, hence none of them can share electrons to foram any bond to eventually form a Electro valentines Compound.

5 0
3 years ago
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