Why the radius of an atom cannot be determined precisely ?

1 answer:

7 0

The radius of an atom cannot be determined precisely because the atomic number would or might have an isotope. The results won't be accurate.

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The branch of chemistry that looks at the release of electrical energy is called

sergij07 [2.7K]

B is the correct answer tbh

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2 years ago

Which of the following most likely represents the specific gravity of granite? 2.7 3.0 3.3 5.5

stepladder [879]

Represent the gravity of granite is 2.7

4 0

3 years ago

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What's the IUPAC name pf this compound? CH3-CH-CH2-CH-CHO | | CH3 CL

Svetradugi [14.3K]

Answer:

2-chloro-4-methylpentanal.

Explanation:

Hello there!

In this case, according to the chemical compound:

CH3-CH-CH2-CH-CHO

| |

CH3 Cl

We can see the main functional group is an starting carbonyl, which means this is an aldehyde. Moreover, we can see a Cl-substituent on the second carbon and a methyl substituent on the fourth carbon. Therefore, the IUPAC name turns out: 2-chloro-4-methylpentanal.

Best regards!

8 0

2 years ago

Calculate the number of grams of solute in 500.0 mL of 0.189 M KOH.

KIM [24]

Answer : The number of grams of solute in 500.0 mL of 0.189 M KOH is, 5.292 grams

Solution : Given,

Volume of solution = 500 ml

Molarity of KOH solution = 0.189 M

Molar mass of KOH = 56 g/mole

Formula used :

$Molarity=\frac{\text{Mass of KOH}\times 1000}{\text{Molar mass of KOH}\times \text{Volume of solution in ml}}$