How can you tell which isotope is the most common?

1 answer:

6 0

To determine the most abundant isotopic form of an element, compare given isotopes to the weighted average on the periodic table.

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Why does the fact that Americans are using less fertilizer not indicate a decline in American farming?

meriva

It shows that the population is moving towards a more organic and natural way of growing crops. Rather than using fertilizer and putting toxins on the plants that we eat from, we are getting smarter and growing food naturally. Thus not killing ourselves in the process.

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Calculate the speed of a dog running through a field if he is covering 23.7 meters in 54 seconds.

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Explanation:

speed = distance/time

= 23.7/54 m/s

= 0.44 m/s

speed of a dog running through a field = 0.44 m/s

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Which part of the Periodic Table of the elements is used to identify valence electrons? *

irina1246 [14]

The number of valence electrons of an element can be determined by the periodic table group (vertical column) in which the element is categorized

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2 years ago

If 2.1 moles of NaCl is dissolved in a solution with a total volume of 7.3 liters, what is the molarity of the solution? Round t

Arturiano [62]

Answer:

The molarity of the solution is 0.29 $\frac{moles}{liter}$

Explanation:

Molarity, or molar concentration, is a measure of the concentration of a solute in a solution, be it some molecular, ionic or atomic species. It is defined as the number of moles of solute that are dissolved in a given volume.

Molarity is calculated as the quotient between the number of moles of solutes and the volume of the solution:

$Molarity=\frac{number of moles of solute}{volume}$