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
Rzqust [24]
3 years ago
14

Calcium carbonate is a compound that is used to make chalk for drawing on rocks or pavement. One molecule has one atom of calciu

m (Ca), one atom of carbon (C), and three atoms of oxygen (O). Which is the correct way to write the chemical formula for calcium carbonate?
A.
3CaCO
B.
Ca3CO
C.
CaCO3
D.
Ca3C3O3
using plato
Chemistry
2 answers:
Black_prince [1.1K]3 years ago
6 0

Answer:

the chemical formula is caca3

solmaris [256]3 years ago
4 0

Answer:

C. CaCO₃  

Explanation:

One formula unit contains the elements calcium, carbon, and oxygen. Start by writing the symbol of the elements:

CaCO

We indicate the number of atoms of each element by writing the number as a subscript following the symbol.

One formula unit contains one atom of Ca, one of C, and three of O, so the formula becomes

Ca₁C₁O₃

Finally, we do not write one as a subscript in a formula. If there is no subscript, we automatically assume that it is one. Thus, the correct formula is

CaCO₃

You might be interested in
What activates a convection current, starting the flow of a fluid ??
Grace [21]
Hey there!

<span>What activates a convection current, starting the flow of a fluid ?

Answer: </span>

<span>D. Temperature differences in the mantle </span><span>
Hope this helps
Have a great day (:
</span>
6 0
3 years ago
Read 2 more answers
Using the van der Waals equation, determine the pressure of 500.0 g of SO2(g) in a 6.30-L vessel at 633 K. For SO2(g), a = 6.865
dem82 [27]

Answer:

The pressure is 58.75 atm.

Explanation:

From Vanderwaal's equation,

P = nRT/(V-nb) - n^2a/V^2

n is the number of moles of SO2 = mass/MW = 500/64 = 7.81 mol

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

T is temperature of the vessel = 633 K

V is volume of the vessel = 6.3 L

a & b are Vanderwaal's constant = 6.865 L^2.atm/mol^2 and 0.0567 L/mol respectively.

P = (7.81×0.0821×633)/(6.3 - 7.81×0.05679) - (7.81^2 × 6.865)/6.3^2 = 69.30 - 10.55 = 58.75 atm

4 0
3 years ago
Which of the following are considered physical properties of metals?
attashe74 [19]

a. malleable, flexible, and ductile

4 0
3 years ago
Enter the chemical equation 2h (aq) s2−(aq)→h2s(g).
horrorfan [7]
I don't understand what is (g).
Maybe the answer is 2H<span>(aq)S</span>₂<span>−2(aq) </span>⇒ <span>H</span>₂<span>S</span>₂.
5 0
3 years ago
Why would a percent yield be less than 100%? give a reason
alexdok [17]

Answer:

Usually, percent yield is lower than 100% because the actual yield is often less than the theoretical value. Reasons for this can include incomplete or competing reactions and loss of sample during recovery. ... This can happen when other reactions were occurring that also formed the product.

Explanation:

5 0
3 years ago
Other questions:
  • A covalent bond between to atoms results when the atoms
    6·1 answer
  • What is the volume of a cube with side length of 5.00 cm?<br> mL
    10·1 answer
  • A hydrogen-like ion is an ion containing only one electron. The energies of the electron in a hydrogen-like ion are given by the
    13·2 answers
  • Why is graphite used as a lubricant
    14·2 answers
  • How does air above a heated surface move?
    6·1 answer
  • The elements on the Periodic Table of the Elements are arranged in order of increasing
    12·2 answers
  • Calculate the pH of a 0.09 M solution of HBr​
    12·1 answer
  • How many moles are in 24.3g of iron (II) oxide?
    11·1 answer
  • Mixture of same boiling point cannot be separated by using distillation why?<br>​
    5·2 answers
  • Distinguish between zinc nitrate and lead nitrate ​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!