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tatiyna
3 years ago
7

What is the identity of the element with the electron configuration of

Chemistry
1 answer:
Nataly [62]3 years ago
3 0

Zinc

Explanation:

  Electron configuration:

          1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s²

To decipher this atom, we must understand what each of the letters and number represents;

                 1s²

  1 is the principal quantum number

  s is the azimuthal number or the subshell

  2 superscript is the number of electrons

Using the number of electrons, we can deduced the atom:

                              2+2+6+2+6+10+2 = 30 electrons

The element with 30 electrons on the periodic table is Zinc

Learn more:

Periodic table brainly.com/question/1704778

#learnwithBrainly

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A chemical change combining two elements results in?
Neporo4naja [7]

Answer:

When two distinct elements are chemically combined for example, chemical bonds form between their atoms, the result is called a chemical compound. Most elements on Earth bond with other elements to form chemical compounds, such as sodium and Chloride, which combine to form table salt.

8 0
3 years ago
HELP I NEED TO GET THIS FINISHED ASAP
andreyandreev [35.5K]

Answer: Cell A & Sex of rabbit

Cell A is a Sperm Which mean is a male cuz males have sperms

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3 0
3 years ago
A 3.82 g piece of limestone contains 2.62 g of CaCO3
Kobotan [32]

Considering the definition of percentage by mass, the mass percentage of CaCO₃ is 68.59%.

<h3>What is mass percentage</h3>

The percentage by mass expresses the concentration and indicates the amount of mass of solute present in 100 grams of solution.

In other words, the percentage by mass of a component of the solution is defined as the ratio of the mass of the solute to the mass of the solution, expressed as a percentage.

The percentage by mass is calculated as the mass of the solute divided by the mass of the solution, the result of which is multiplied by 100 to give a percentage. This is:

mass percentage=\frac{mass of solute}{mass of solution}x100

<h3>Mass percentage of CaCO₃</h3>

In this case, you know:

  • mass of CaCO₃: 2.62 grams
  • mass of limestone: 3.82 grams

Replacing in the definition of mass percentage:

mass percentage=\frac{2.62 grams}{3.82 grams}x100

<u><em>mass percentage= 68.59 %</em></u>

Finally, the mass percentage of CaCO₃ is 68.59%.

Learn more about percentage by mass:

brainly.com/question/24201923

brainly.com/question/9779410

brainly.com/question/17030163

#SPJ1

7 0
2 years ago
Ground water, the largest source of fresh water, is stored in bodies of rock and or sediment
zepelin [54]
D. Aquifers
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7 0
3 years ago
Carbonyl fluoride, COF2, is an important intermediate used in the production of fluorine-containing compounds. For instance, it
kvasek [131]

Answer:

0.396 M

Explanation:

Let's consider the following reaction.

2 COF₂(g) ⇌ CO₂(g) + CF₄(g)

We can find the concentrations at equilibrium using an ICE Chart.

         2 COF₂(g) ⇌ CO₂(g) + CF₄(g)

I            2.00              0            0

C           -2x                +x          +x

E         2.00-2x            x             x

The concentration equilibrium constant (Kc) is:

Kc=4.10=\frac{[CO_{2}][CF_{4}]}{[COF_{2}]^{2} } =\frac{x^{2} }{(2.00-2x)^{2} } =(\frac{x}{2.00-2x} )^{2} \\\sqrt{4.10} = \frac{x}{2.00-2x}\\4.05-4.05x=x\\x=0.802

The concentration of COF₂ at equilibrium is:

[COF₂] = 2.00-2x = 2.00-2(0.802) = 0.396 M

4 0
3 years ago
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