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Zigmanuir [339]
3 years ago
10

????.? .?.? . I have some question on Alef website

Chemistry
2 answers:
Andrew [12]3 years ago
8 0

B. crust, middle, core

Ganezh [65]3 years ago
3 0

The correct answer is B

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What is the temperature 51°C expressed in kelvins?
Evgesh-ka [11]

Answer:

The answer is

<h2>324 K</h2>

Explanation:

To express a given temperature in degree Celsius to Kelvin simplify add 273 to the given value

That's

<h3>K = 273 + °C</h3>

where

K = Kelvin

°C = value in degree Celsius

From the question the value to be converted is 51°C

It's equivalent in Kelvin is

K = 273 + 51

We the final answer as

<h2>324 K</h2>

Hope this helps you

4 0
3 years ago
Which of the following describes a reaction that reaches equilibrium?
alexandr1967 [171]

Answer:The product and reactants reach a final, unchanging level.

8 0
3 years ago
What is harder to pull apart a sodium ion from a chloride ion or a potassium ion from a chloride ion?
madreJ [45]
<span>Hydrogen ion, strictly, the nucleus of a hydrogen atom separated from its accompanying electron. Thehydrogen nucleus is made up of a particle carrying a unit positive electric charge, called a proton. The isolated hydrogen ion, represented by the symbol H +, is therefore customarily used to represent aproton.</span><span>
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6 0
4 years ago
How to calculate the atomic mass of Cl​
slega [8]
To find the atomic mass of chlorine, the atomic mass of each isotope is multiplied by the relative abundance (the percent abundance in decimal form) and then the individual masses are added together. The atomic mass of chlorine is 35.45 amu.
8 0
3 years ago
Draw the structure of the following three isomeric esters with chemical formula C7H12O2. Ester #1: methyl 1-methylcyclobutanecar
marissa [1.9K]

Answer:

The following three isomeric structure are given below.

Explanation:

Structure of the following three isomeric esters with chemical formula C₇H₁₂O₂

Ester #1: methyl 1-methylcyclobutanecarboxylate

Ester #2: (E)-methyl 3-methyl-3-pentenoate

Ester #3: isopropyl 2-methylpropenoate                

6 0
3 years ago
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