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3 years ago

What is the abbreviated electron configuration of iodine (I)?

Chemistry

1 answer:

castortr0y [4]3 years ago

5 0

Answer:

b) [Kr] 5s² 4d¹⁰ 5p⁵

Explanation:

Properties of iodine:

Iodine is present in group seventeen.

It is halogen element.

Its atomic mass is 127 amu.

Its atomic number is 53.

It is present in solid form.

It is crystalline in nature.

It is very corrosive and has pungent odor.

It can not react with oxygen and nitrogen.

Electronic configuration:

I₅₅ = 1s² 2s² 2p⁶ 3s³ 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁵

Abbreviated electronic configuration:

I₅₅ = [Kr] 5s² 4d¹⁰ 5p⁵

Abbreviated electronic configuration is shortest electronic configuration by using the noble gases.

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How many kilograms of oxygen did Samantha need to utilize to react with 36.29 kg of triglycerides (C55H104O6)?

Paraphin [41]

Answer:

105.33Kg of O2.

Explanation:

Step 1:

The balanced equation for the reaction. This is given below:

C55H104O6 + 78O2 —> 55CO2 + 52H2O

Step 2:

Determination of the masses of C55H104O6 and O2 that reacted from the balanced equation.

This is illustrated below:

Molar mass of C55H104O6 = (12x55) + (104x1) + (16x6) = 860g/mol

Mass of C55H104O6 from the balanced equation = 1 x 860 = 860g.

Divide the mass of C55H104O6 by 1000 to express in kg i.e

Mass of C55H104O6 = 860/1000= 0.86Kg

Molar Mass of O2 = 16x2 = 32g/mol

Mass of O2 from the balanced equation = 78 x 32 = 2496g.

Divide the mass of O2 by 1000 to express in kg i.e

Mass of O2 = 2496/1000 = 2.496kg.

From the balanced equation above,

0.86kg of C55H104O6 reacted with 2.496Kg of O2.

Step 3:

Determination of the mass of O2 in kg needed to react with 36.29 kg of triglycerides (C55H104O6).

This can be obtained as follow:

From the balanced equation above,

0.86kg of C55H104O6 reacted with 2.496Kg of O2.

Therefore, 36.29 kg of C55H104O6 will react with = (36.29 x 2.496)/0.86 = 105.33Kg of O2.

Therefore, 105.33Kg of O2 is needed for the reaction.

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2 years ago

Paragraph 2 discusses two different types of thermochemical reactions. In one type of

astraxan [27]

Answer: The reaction is endothermic.

Explanation:

Endothermic reaction : It is a type of chemical reaction where the energy is absorbed from the surrounding. In the endothermic reaction, the reactant have less energy than the energy of products

In endothermic reaction, enthalpy terms is located on the reactant side.

Example: $A+B+energy\rightarrow C+D$

Exothermic reaction : It is a type of chemical reaction where the energy is released into the surrounding. In the exothermic reaction, the energy of reactants are more than the energy of products

In exothermic reaction, enthalpy terms is located on the product side.

Example: $A+B\rightarrow C+D+energy$

8 0

3 years ago

Name the substance which occurs in all the physical states in nature?

Paraphin [41]

Answer: water

For many centuries, it was considered that there were only three states of matter: solid, liquid and gas (the three that are present and stable in our world). And water is the substance that best represents them, because it is the only one that exists naturally in the three states.

Explanation: Matter can exist in one of three main states: solid, liquid, or gas.

Solid matter is composed of tightly packed particles. ...

Liquid matter is made of more loosely packed particles. ...

Gaseous matter is composed of particles packed so loosely that it has neither a defined shape nor a defined volume.

6 0

3 years ago

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If a driver takes 30 min to get to the town market, which is 1.5 km away from his house, what is his average speed?

zvonat [6]

Answer: 0.83 m/s

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