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Margaret [11]
3 years ago
6

Use the periodic table to determine the electron configuration for Br and Y in noble-gas notation.

Chemistry
2 answers:
Gennadij [26K]3 years ago
8 0

Answer:

[Ar]4s24p5

Explanation:

just took the assignment

Slav-nsk [51]3 years ago
3 0

Answer:

y=[Kr]5s24d1

Explanation:

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The stomach and intestines are organs of the body system which _______.
yulyashka [42]

Answer:

A. Digests food

Explanation:

Look about diggestive process in Google

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3 0
3 years ago
Read 2 more answers
In which of the following cases does the reaction go to farthest to completion ?
Mashcka [7]

Answer:

k=10^{3}

Explanation:

k stand for equilibrium constants in terms of reaction

The higher the value of an equilibrium constant the faster the equilibrium reaction comes to completion.

Consider the example below:

R_{1}\ + R_{2}⇄P_{1}\ + P_{2}

where

The\ equilibrium\ constant\ K = \frac{P_{1}P_{2}}{R_{1}R_{2}}

For a faster reaction the numerator i.e. the right hand side of the equation have to be higher than the left hand side (the denominator). therefore the higher the numerator, the higher the value of the equilibrium constant and the faster the reaction get to completion thus option c is correct.

5 0
3 years ago
1 C8H10(l) +21/2O2(g) → 8CO2(g) + 5H2O(g), Hcomb= ? Hf for C8H10(l) = +49.0kJ/mol C8H10(l) Use the balanced combustion reaction
nikklg [1K]

Answer:

H_{comb}=-4406kJ/mol

Explanation:

Hello,

In this case, the enthalpy of combustion is understood as the energy released when one mole of fuel, in this case octene, is burned in the presence of oxygen and is computed with the enthalpies of formation of the fuel, carbon dioxide and water as shown below (oxygen is circumvented as it is a pure element):

H_{comb}=8*\Delta _fH_{CO_2}+5\Delta _fH_{H_2O}-\Delta _fH_{C_8H_{10}}

Thus, since we already know the enthalpy of combustion of the fuel, for carbon and water we have -393.5 and -241.8 kJ/mol respectively, thereby, the enthalpy of combustion turns out:

H_{comb}=8*(-393.5kJ/mol)+5(-241.8kJ/mol)-49.0kJ/mol\\\\H_{comb}=-4406kJ/mol

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4 0
3 years ago
What parts of a wave are used to determine the wavelength of that wave
Ann [662]
The trough and the hill part
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3 years ago
QUICKEST GETS BRAINLIEST AND 7 POINTS
Angelina_Jolie [31]
Hello there.

Thomson's atomic model is best described by which of the following statements?

A nucleus with electrons moving around it like planets.
3 0
3 years ago
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