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2 years ago

2. Periodic Table Layout. The periodic table is organized in horizontal rows and also in vertical

Chemistry

1 answer:

Marta_Voda [28]2 years ago

7 0

Answer:

Explanation:

Columns and rows used in the periodic classification of elements shows trends in the properties of elements.

The periodic columns are called groups and they denote vertical arrangement of elements.

The horizontal rows are the periods.

Groups and Periods provides a very simple way to classify elements.
They reflect trends among different elements that are found in nature. Following these groups and periods, it is even possible to predict the nature of an undiscovered element.
Certain parts of the table have some unique elements on them with some distinctive properties that distinguish them from others.
The atomic number is the basis of this classification. By this, it is possible to delineate that elements with similar properties are located on the same group.

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You need to find the abundance. Then, multiply the abundance by 100, and add that to the mass for each isotope. Basically, for each isotope, take the percentage abundance and add it to the mass. Multiply each calculation of these together to get your average atomic mass,

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3 years ago

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2 years ago

Draw the structures of two stereoisomeric alkenes that would give 3-hexanol as the only major product of hydroboration followed

soldi70 [24.7K]

Answer:

cis-3-hexene and trans-3-hexene

Explanation:

Hydroboration oxidation is a method of preparation of alcohol from alkene.

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cis-3-hexene and trans-3-hexene undergoes hydroboration to form 3-hexanol.

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2 years ago

In the following reaction, how many moles of H2O are created when 7 moles of oxygen are consumed?

notka56 [123]

Answer:

Explanation:

You can see in the chemical equation that 7 $O_{2}$ are used up to produce 6 $H_{2}O$

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3 years ago

Given the reaction, 2 SO2 + O2 Imported Asset 2 SO3, if 4 moles of SO2 are used, then how many moles of SO3 are made

scZoUnD [109]

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2 years ago