1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
insens350 [35]
3 years ago
11

What is the correct notation for a calcium ion whose outershell is a full octet?

Chemistry
1 answer:
horsena [70]3 years ago
8 0
<span>Ca^(2+). Calcium is an alkaline earth metal with an atomic number of 20. Its electronic configuration is (2, 8, 8, 2). From the electronic configuration it would be observed that calcium has two valence electrons. Calcium shares these two electrons with non metals like sulphur in an ionic bond to obtain an outer shell which is full octet. Let me use Sulphur. When calcium gives out its two valence electrons its electronic configuration becomes (2, 8, 8) thereby obtaining a stable out shell and the calcium ion becomes Ca^(2+). The sulphur also obtains a stable octet because it has 6 valence electron initially.</span>
You might be interested in
Separation of light into different wavelengths
TiliK225 [7]

Answer:

I'm sure it's Dispersion

Explanation:

4 0
2 years ago
On September 23 The earths axis is tilted which way?
Mariana [72]

Answer:

The earth is tilted so its perpendicular

Explanation:

Because its straight up and down

3 0
3 years ago
List three things that rely on the Sun as the major source of energy​
valkas [14]

Answer:

Three things that rely on the sun for energy is coal,oil, and natural gases

Explanation:

We use engery too cook our food that's an example of how gases are used.

We run our cars .Cars use oil.

And we use electricity for lights. You need coal for the electricity

6 0
3 years ago
Read 2 more answers
Can anyone teach me what is criss cross method in chemistry​
Solnce55 [7]

Answer:

In the criss-cross method, the numerical value of the ion charge of the two atoms are crossed over, which becomes the subscript of the other ion. Using this technique, we will write the chemical formula of the given compounds.

Criss cross the absolute values to give Al2O3. To find the formula for magnesium oxide:- The oxidation number of Mg is +2 and oxygen is -2. Criss cross the absolute values to give Mg2O2In this example there is a common factor of 2 so divide by 2 to give MgO.

8 0
2 years ago
For the elementary reaction NO3 + CO → NO2 + CO2 the molecularity of the reaction is ________, and the rate law is rate = ______
blagie [28]

Answer: For the elementary reaction NO_3+CO\rightarrow NO_2+CO_2 the molecularity of the reaction is 2, and the rate law is rate = k[NO_3]^1[CO]^1

Explanation:

Order of the reaction is defined as the sum of the concentration of terms on which the rate of the reaction actually depends. It is the sum of the exponents of the molar concentration in the rate law expression.

Elementary reactions are defined as the reactions for which the order of the reaction is same as its molecularity and order with respect to each reactant is equal to its stoichiometric coefficient as represented in the balanced chemical reaction.

Molecularity of the reaction is defined as the number of atoms, ions or molecules that must colloid with one another simultaneously so as to result into a chemical reaction.  Thus it can never be fractional.

For elementary reaction NO_3+CO\rightarrow NO_2+CO_2 , molecularity is 2 and rate law is rate=k[NO_3]^1[CO]^1

3 0
3 years ago
Other questions:
  • Which statement best describes the properties of covalent compounds?
    15·1 answer
  • A fixed quantity of gas fills a volume of 10.6 liters at 638 torr and 83 C. Find the volume it will occupy if the pressure is 10
    11·1 answer
  • Water electrolysis of hcl ? Please
    9·1 answer
  • What is the most common substance found in natural gas
    8·2 answers
  • Manganese(IV) oxide is reduced to manganese(II) oxide by hydrogen gas. Include all phases in answer
    9·1 answer
  • Using the combined gas law above, identify the variables that would be in the numerator (A) and denominator (B) if you were to r
    6·1 answer
  • A weight of 0.27 kilogram is<br> 1. 0.00027 mg<br> 2. 270 mg<br> 3. 27 mg<br> 4. 2.7 × 105 mg
    9·1 answer
  • The balanced equation below shows the products that are formed when butane (C4H10) is combusted.
    11·2 answers
  • What is the atomic mass of the element based off from the charts ?
    9·1 answer
  • Who created the periodic table?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!