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
Murljashka [212]
3 years ago
12

Identify the name of the compound Cr2(CO3)3.

Chemistry
2 answers:
Sonja [21]3 years ago
8 0

The name of the compound {\text{C}}{{\text{r}}_{\text{2}}}{\left( {{\text{C}}{{\text{O}}_{\text{3}}}} \right)_3} is \boxed{{\text{chromium }}\left( {{\text{III}}} \right){\text{ carbonate}}}.

Further explanation:

An ionic compound is formed when there occurs complete transfer of electrons between the bonded atoms. Atoms that lose electrons form cations whereas that gain electrons forms anions. Cations are positively charged ions and anions are negatively charged ions.ns.

An ionic compound is named by naming its cation first and then by its anion.

Naming of cations:

1. The main group cations are named the same as the name of their corresponding elements. For example, {\text{N}}{{\text{a}}^ + } is named sodium cation.

2. The transition metals cations are named similar to the main group elements. The only difference is that the charge of transition metal cations is written in parenthesis after the name of the cation. For example, {\text{C}}{{\text{u}}^{2 + }} is named copper (II) cation.

3. The polyatomic cation is named by adding suffix “ium”.

Naming of anions:

1. The suffix “ide” is added when a monoatomic anion is formed by an element. For example, {{\text{H}}^ - } is named as a hydride.

2. When two oxyanions are formed by a single element, the oxyanion with fewer oxygen atoms is written with suffix “ite” and that with more oxygen is named with suffix “ate”. For example, {\text{NO}}_2^ - is named nitrite while {\text{NO}}_3^ - is named nitrate.

3. If a series of oxyanions are formed by an element, prefix “hypo” is used when fewer oxygen atoms are present and prefix “per” is used if more oxygen atoms are present. For example, {\text{Cl}}{{\text{O}}^ - } is named hypochlorite while {\text{ClO}}_4^ - is named as perchlorate.

The given compound is {\text{C}}{{\text{r}}_{\text{2}}}{\left( {{\text{C}}{{\text{O}}_{\text{3}}}} \right)_{\text{3}}}. Since Cr is a transition metal so its oxidation state has to be written parantheses.

The expression to calculate the oxidation state in {\text{C}}{{\text{r}}_{\text{2}}}{\left( {{\text{C}}{{\text{O}}_{\text{3}}}} \right)_{\text{3}}} is:

\left[ {2\left( {{\text{oxidation state of Cr}}} \right) + 3\left( {{\text{oxidation state of C}}} \right) + 9\left( {{\text{oxidation state of O}}} \right)} \right] = 0     … (1)

Rearrange equation (1) for the oxidation state of Cr.

{\text{Oxidation state of Cr}} = \dfrac{{\left[ { - 3\left( {{\text{oxidation state of C}}} \right) - 9\left( {{\text{oxidation state of O}}} \right)} \right]}}{2}        …… (2)  

Substitute +4 for the oxidation {\text{state}} of C and -2 for the oxidation state of O in equation (2).

\begin{aligned}{\text{Oxidation state of Cr}} &= \frac{{\left[ { - 3\left( { + {\text{4}}} \right) - 9\left({ - {\text{2}}} \right)} \right]}}{2}\\&= \frac{{ - 12 + 18}}{2}\\&=+ 3\\\end{aligned}  

Therefore the oxidation state of Cr in {\text{C}}{{\text{r}}_{\text{2}}}{\left( {{\text{C}}{{\text{O}}_{\text{3}}}} \right)_{\text{3}}} is +3.

The formula of any compound is formed by crisscross rule. So the charge on the anion will be -2 and the corresponding anion is {\text{CO}}_3^{2 - } whose name is carbonate. Therefore the name of the given compound is chromium (III) carbonate.

Learn more:

  1. Determine the correct name and formula of acid: brainly.com/question/7072854
  2. Identify the precipitate in the reaction: brainly.com/question/8896163

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Ionic compounds

Keywords: ions, cations, anions, electron, oxidation state, Cr, Cr2(CO3)3, +3, +4, -2, O, C, naming of cations, naming of anions.

kompoz [17]3 years ago
7 0
Cr2(CO3)3 is Chromium (III) Carbonate or Chromic Carbonate. 

It is composed of Chromium, Carbon, and Oxygen. Chromium has 2 atoms, Carbon has 3 atoms, and Oxygen has 9 atoms. 

This compound is composed of 36.6% Chromium, 12.7% Carbon, and 50.7% Oxygen.
You might be interested in
describe how astronomers are able to use the light from a distant star to determine what elements make up the stars.
dlinn [17]

Answer:

The spectra of the Sun and stars exhibited bright and dark lines called Fraunhofer lines. These were shown to be caused by elements emitting or absorbing light at specific wavelengths. Because each element emits or absorbs light only at specific wavelengths, the chemical composition of stars can be determined.

7 0
3 years ago
Which best describes the difference between radiation and conduction? (1 point)
NNADVOKAT [17]

Answer:

B) Conduction requires two objects to be in physical contact.

Explanation:

Conduction is when two objects are directly touching each other. So, the objects must come in physical contact with each other.

6 0
2 years ago
What does Avogadro's number represent?
DIA [1.3K]
The number 6.022 × 1023 indicating the number of atoms or molecules in a mole of any substance
5 0
3 years ago
Read 2 more answers
Write insoluble or soluble solution for the following mixtores<br>1<br>2<br>3<br>4<br>5<br>​
dimaraw [331]

<em>Gasoline</em><em> </em><em>in</em><em> </em><em>water</em><em> </em><em>=</em><em> </em><em>insoluble</em><em> </em>

<em>acetone</em><em> </em><em>in</em><em> </em><em>nail</em><em> </em><em>polished</em><em> </em><em>=</em><em> </em><em>soluble</em><em> </em>

<em>salt</em><em> </em><em>in</em><em> </em><em>alcohol</em><em> </em><em>=</em><em> </em><em>soluble</em><em> </em>

<em>oil</em><em> </em><em>in</em><em> </em><em>vinegar</em><em> </em><em>=</em><em> </em><em>insoluble</em><em> </em>

<em>tawas</em><em> </em><em>in</em><em> </em><em>water</em><em> </em><em>=</em><em> </em><em>soluble</em><em>.</em><em>.</em><em>.</em>

<em>Sorry</em><em> </em><em>if</em><em> </em><em>i</em><em> </em><em>am</em><em> </em><em>incorrect</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>

6 0
2 years ago
How many grams of argon would it take to fill a large light bulb with a volume of 0.745 L at STP?
EastWind [94]

Answer:

Mass = 1.33 g

Explanation:

Given data:

Mass of argon required = ?

Volume of bulb = 0.745 L

Temperature and pressure = standard

Solution:

We will calculate the number of moles of argon first.

Formula:

PV = nRT

R = general gas constant = 0.0821 atm.L/mol.K

By putting values,

1 atm ×0.745 L = n × 0.0821 atm.L/mol.K× 273.15 K

0.745 atm. L = n × 22.43 atm.L/mol

n = 0.745 atm. L / 22.43 atm.L/mol

n = 0.0332 mol

Mass of argon:

Mass = number of moles × molar mass

Mass = 0.0332 mol × 39.95 g/mol

Mass = 1.33 g

8 0
3 years ago
Other questions:
  • 15. What is the name of Fl-?<br> A)Fluorous ion<br> B)Fluorine<br> C)Fluoride ion<br> D)Fluorine ion
    8·1 answer
  • Substances change temperature at different rates because of their
    6·1 answer
  • The long term weather patterns for an area is
    7·2 answers
  • What is chemical name of group viii elements​
    12·1 answer
  • Bromination occurs on alkene functional groups, but not on alkenes found within aromatic functional groups, such as the phenyl r
    12·1 answer
  • Anions are those elements on the upper right side of the periodic table, excluding the Noble gases, that gain electrons when the
    14·1 answer
  • Which of the following is the energy of moving electrons?
    7·1 answer
  • DHDHDHSHSHSHSVSVSBSHSHHAVAVABAVABAGAGAGAGAGAGABABABABBA
    8·2 answers
  • How much energy is needed to turn 23 g of water completely into steam if it starts at a temperature of 8.0oC?
    14·1 answer
  • What are the products of the balanced equation for the combustion of C8H17OH ?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!