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
Greeley [361]
3 years ago
7

Write a balanced chemical equation, including physical state symbols, for the decomposition of solid calcium carbonate (CaCO_3)

into solid calcium oxide and gaseous carbon dioxide.
Chemistry
2 answers:
nadya68 [22]3 years ago
6 0

Answer:

CaCO₃(s) → CaO(s) + CO₂(g)

Explanation:

The decomposition reaction always make two compounds from one.

The products always have simpler chemical structure, originated from a determined compound. This can happens  spontaneously or by a third party.

A notable example of decomposition is hydrolysis. As for example the case of water, which decomposes and generates oxygen and hydrogen gas

2H₂O (l) → 2 H₂ (g) + O₂ (g)

In this case, the calium carbonate decomposes into CaO and CO₂

These two, are the products of the decomposition.

Of course, the unique reactant is the Calcium Carbonate

The balanced equation is:

CaCO₃(s) → CaO(s) + CO₂(g)

sweet-ann [11.9K]3 years ago
4 0

Answer:

CaCO3(s) → CaO(s) + CO2(g)

Explanation:

Step 1: Data given

Solid calcium carbonate = CaCO3(s)

solid calcium oxide = CaO(s)

gaseous carbon oxide = CO2(g)

Step 2: The unbalanced equation

CaCO3(s) → CaO(s) + CO2(g)

This equation is already balanced. We don't have to balance anything.

The balanced equation is:

CaCO3(s) → CaO(s) + CO2(g)

You might be interested in
10 moles of carbon dioxide has a mass of 440 g. What is the relative formula mass of carbon dioxide?
Ksenya-84 [330]

Answer: 44g

Explanation: The formular for finding Moles is ;

Moles =  Mass / Molar Mass or Formular Mass.

Base on this question; Moles = 10, Mass = 440g, and Formular Mass = ?

Making 'Formular Mass', subject of the formular; we thus have;

Formular mass = Mass / Moles = 440/ 10 = 44g

7 0
2 years ago
The cube has a mass of 72.9 g.<br><br> What is its density in g/cm3? <br><br> What substance is it?
sashaice [31]
If the cube is 3 cm on each side, then it has a volume of 27 cm^3 (3 x 3 x 3). Density is mass divided by volume, so its density is 72.9/27 = 2.7 g/cm^3. 

<span>Going by the density, the cube is made of Aluminium - density is a fairly unique quantity</span>
6 0
3 years ago
Is 0.297 cg the same as 2.97 milligrams
satela [25.4K]
Yes, they are the same. They are equivalent.
4 0
3 years ago
Which combination of factors is most suitable for increasing the electrical conductivity of metals
Lemur [1.5K]
More valence electrons and larger atomic radius are facts most suitable for increasing the electrical conductivity of metals.
5 0
3 years ago
Read 2 more answers
Is a 93.3% solution dilute or concentrated?<br><br><br> Dilute<br><br><br> Concentrated
oksano4ka [1.4K]

Answer:

<u><em></em></u>

  • <u><em>Concentrated</em></u>

Explanation:

Concentration measures the amount of solute in a solution. There are many expressions of concentration. Some of then are percentage (mass/mass, volume/mass, volume/volume), molarity, molality, mole fraction, among others.

When a solution has a high concentration it is said that it is <em>concentrated; </em>when a solution has a low concentration is is said that is is diluted.

Concentrated solutions expressed in percentage typically have about 80 - 90% (or more) of solute.

Diluted solutions expressed in percentage, tipylcally have about 10% - 20% or less.

But they are not fixed limits. You might say that a 85% solution is concentrated. Acids at 75 % sure are concentrated.

Hence, a 93.3% solution is concentrated, definitely.

3 0
3 years ago
Other questions:
  • What energy conversion occurs when a solar panel uses light to provide power to a house?
    13·1 answer
  • Lpg contains ? (<br> a. methane (<br> b. butane (<br> c. eyhane (<br> d. none of them
    12·1 answer
  • Acrylonitrile (C3H3N) Is The Starting Material For Many Synthetic Carpets And Fabrics. It Is Produced By The Following Reaction:
    15·1 answer
  • 3. A 31.2-g piece of silver (s = 0.237 J/(g · °C)), initially at 277.2°C, is added to 185.8 g of a liquid, initially at 24.4°C,
    13·1 answer
  • Describe the R group found within an amino acid
    7·1 answer
  • How can the periodic table be used to infer the number of valence electrons in an atom?
    10·1 answer
  • Which step is this ?prophase I, Anaphase I, prophase II, Anaphase II
    7·2 answers
  • How does the structure of the steroid EXPLAIN the function of the steroid?
    7·1 answer
  • How would different ratios of fuel and oxygen affect the altitude the rocket reaches?
    8·1 answer
  • Describe one way the respiratory and nervous system work together​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!