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
Ket [755]
2 years ago
14

Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon

Chemistry
1 answer:
Dafna1 [17]2 years ago
4 0

Answer:

Explanation:

Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon

dioxide as shown below.

CaCO3(s) = CaO(s) + CO2(g)

The Kp for this reaction is 1.16 at 800°C. A 5.00 L vessel containing 10.0 g of CaCO3(s)

was evacuated to remove the air, sealed, and then heated to 800°C. Ignoring the volume

occupied by the solid, what will overall mass percent of carbon in the solid once equilibrium is reached?

You might be interested in
In a solution the___is the liquid that the____is added to.
Aleksandr [31]

Answer:

In a solution the solvent is the liquid that the solute is added to.

Explanation:

Solute + Solvent = Solution.

For example: An aqueous solution of 10 g of NaCl in 100 g of water

NaCl → solute → what you dissolved

H₂O → solvent → where you dissolve

4 0
3 years ago
A gas sample is found to contain 39.10% carbon, 7.67% hydrogen, 26.11% oxygen, 16.82% phosphorus, and 10.30% fluorine. If the mo
Doss [256]

Answer:

C6H14O3F

Explanation:

The first step is to divide each compound by its molecular weight

Carbon

= 39.10/12

= 3.258

Hydrogen

= 7.67/1

= 7.67

Oxygen

= 26.11/16

= 1.63

Phosphorous

= 16.82/31

= 0.542

Flourine

= 10.30/19

= 0.542

The next step is to divide by the lowes value

3.258/0.542

= 6 mol of C

7.67/0.542

= 14 mol of H

1.63/0.542

= 3 mol of O

0.542/0.542

= 1 mol of P

0.542/0.542

= 1 mol of F

Hence the molecular formula is C6H14O3F

5 0
3 years ago
Lucia drew a diagram to compare animal cells and plant cells. Which label belongs in the area marked Y?
Juli2301 [7.4K]

Answer:

Golgi body

Explanation:

8 0
3 years ago
Read 2 more answers
How many capsules containing 75mg of Tamiflu could be produced from 155g of star anise.?
jeyben [28]
From the question you will find that:
one capsule of tamiflu is obtained from 2.6 g of star anise.
1 capsule   = 2.6 g tamiflu
? capsules = 155 g tamiflu
by cross multiplication = \frac{(1 x 155)}{2.6} = 59 capsules
7 0
3 years ago
Which method is used to obtain petrol from petroleum?
kotykmax [81]

Explanation:

fractional distillation method is used to obtain petrol from petroleum...

hope it helps

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which statement describes a scientific law?
    15·2 answers
  • How many grams of KCl is produced if 32.4 grams of O2 is produced?
    7·1 answer
  • Convert the measurement 345.82 Kelvin to degrees Celsius.
    5·2 answers
  • How can you use Hess’s law to determine a reaction’s enthalpy?
    13·1 answer
  • What is the percent of N in NH3?
    5·1 answer
  • Which best describes a chemical reaction that follows the law of conservation of matter?
    13·1 answer
  • What is benzene and alcohol
    15·2 answers
  • The sun rotates on it axis once every:<br><br> 28 hours<br> 120 days<br> 25 days 9 hours
    12·1 answer
  • HELPPP!!!
    9·1 answer
  • According to the beer-lambert law, what happens to the absorbance value of a light-absorbing chemical when its concentration inc
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!