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3 years ago

¿Cuál de las siguientes NO es una característica de los ácidos?

Chemistry

1 answer:

Serga [27]3 years ago

4 0

Answer: B

Explanation: La respuesta es b porque su electricidad y no es un ácido.

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Hey ignore ths i didn mean to post

Sauron [17]

Answer:

WHYYYYYYYYYYYYYYYYYYYYYYY

Explanation:

you said you didnt mean to post it but still typed it and posted it LOLLLLLLLLLLLLLL

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2 years ago

What is the relative atomic mass of a hypothetical element that consists isotopes in the indicated natural abundances

belka [17]

The given question is incomplete. The complete question is:What is the relative atomic mass of a hypothetical element that consists isotopes in the indicated natural abundances.

Isotope mass amu Relative abundance

1 77.9 14.4

2 81.9 14.3

3 85.9 71.3

Express your answer to three significant figures and include the appropriate units.

Answer: 84.2 amu

Explanation:

Mass of isotope 1 = 77.9

% abundance of isotope 1 = 14.4% = $\frac{14.4}{100}=0.144$

Mass of isotope 2 = 81.9

% abundance of isotope 2 = 14.3% = $\frac{14.3}{100}=0.143$

Mass of isotope 3 = 85.9

% abundance of isotope 2 = 71.3% = $\frac{71.3}{100}=0.713$

Formula used for average atomic mass of an element :

$\text{ Average atomic mass of an element}=\sum(\text{atomic mass of an isotopes}\times {{\text { fractional abundance}})$

$A=\sum[(77.9\times 0.144)+(81.9\times 0.143)+(85.9\times 0.713)]$

$A=84.2amu$

Therefore, the average atomic mass of a hypothetical element that consists isotopes in the indicated natural abundances is 84.2 amu

4 0

3 years ago

Sodium dodecanoate is soluble in water even though it contains a large hydrophobic segment. How does this molecule interact with

velikii [3]

Answer:

Sodium laurate, also known as sodium dodecanoate, is a soap. It is the salt of lauric acid. It is an amphiphilic organic molecule which is composed of a hydrophilic head (polar ) and a hydrophobic tail (non-polar fatty acid).

In a aqueous solution, it leads to the formation of a micelle. The hydrophilic head of the molecule interacts with the surrounding polar solvent molecules. Thereby, making the micelle soluble in the solution. Whereas, the hydrophobic tails present in the core of micelle, interacts with the non-polar oil particles.

7 0

3 years ago

This element is less reactive than lithium and magnesium but more reactive than zinc. Which element is this?

Tamiku [17]

The answer should be:

B. Al (Aluminium)

7 0

3 years ago

Read 2 more answers

Can someone help me pls

ella [17]

Answer:

B or C

Explanation:

the two maybe try it

4 0

3 years ago