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3 years ago

Scientific notation for sulfur

Chemistry

1 answer:

AysviL [449]3 years ago

4 0

Answer:

The noble gas electron configuration for sulfur is Ne 3s23p4 3 s 2 3 p 4 .

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Multiple covalent bonds may occur in atoms that contain carbon,nitrogen, or

Arisa [49]

Answer: Multiple covalent bonds may occur in atoms that contain carbon,nitrogen, or <u><em>oxygen</em></u>.

8 0

3 years ago

Hydrogen peroxide decomposes spontaneously to yield water and oxygen gas according to the following reaction equation. 2H202(aq)

inn [45]

Answer : The temperature for non-catalyzed reaction needed will be 456 K

Explanation :

Activation energy : The energy required to initiate the reaction is known as activation energy.

According to the Arrhenius equation,

$K=A\times e^{\frac{-Ea}{RT}}$

Since, the rate for both the reaction are equal.

$K_1=K_2$

$A\times e^{\frac{-Ea_1}{RT_1}}=A\times e^{\frac{-Ea_2}{RT_2}}$

$\frac{Ea_1}{T_1}=\frac{Ea_2}{T_2}$ ..........(1)

where,

$Ea_1$ = activation energy for non-catalyzed reaction = 75 kJ/mol

$Ea_2$ = activation energy for catalyzed reaction = 49 kJ/mol

$T_1$ = temperature for non-catalyzed reaction = ?

$T_2$ = temperature for catalyzed reaction = $25^oC=273+25=298K$

Now put all the given values in the above formula 1, we get:

$\frac{Ea_1}{T_1}=\frac{Ea_2}{T_2}$

$\frac{75kJ/mol}{T_1}=\frac{49kJ/mol}{298K}$

$T_1=456K$

Therefore, the temperature for non-catalyzed reaction needed will be 456 K

3 0

3 years ago

Answer pls ASAPPP 50 pointsss!!

amm1812

Answer:

There should only be one chemical reaction, this is because toasting the bread is not only using heat, but you cannot untoast the bread, and also theres a reaction with the amino acids and sugar in bread when it's cooked. I hope this helps you! :)

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3 years ago

Read 2 more answers

Page : Date: What do you mean by a symbol ? What are the bases of making symbols?

xxTIMURxx [149]

Answer:

Hi, There! your Answers are Below And Are 100% Correct

Symbols are the basis of culture. A symbol is an object, word, or action that stands for something else with no natural relationship that is culturally defined

Explanation: The Answer to your Other Question Is In the Pic :)

(Dont forget to mark thanks)

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3 years ago

Why is hydrogen not considered part of any group

Black_prince [1.1K]

Hydrogen atoms one outer electron so would be placed in group 1. However all group 1 elements are metals and elements in the same group have similar properties. Hydrogen is a non-metal and does not behave in the same way as the other group 1 elements, so that is why it is on its own.

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3 years ago