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]
2 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]2 years ago
6 0

Answer:

the chemical formula is caca3

solmaris [256]2 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
Atoms of two different elements must have different
attashe74 [19]
Atomic number The atomic number of each element is different than other Elements.
8 0
3 years ago
Read 2 more answers
What conclusion can you make about a hypothesis that contradicts an existing theory?
Naddika [18.5K]
What are you making a hypothesis for 
6 0
3 years ago
How many moles of hydrogen gas will be produced if 5.00 moles of zinc reactions with an excess amount of sulfuric acid
harkovskaia [24]

Answer:

Moles of Hydrogen produced is 5 moles

Explanation:

The balanced Chemical equation for reaction between zinc and sulfuric acid is :

Zn(s) + H_{2}SO_{4}(aq) \rightarrow ZnSO_{4}(aq) + H_{2}(g)

This equation tells that ; when  1 mole of Zn react with 1 mole of sulfuric acid, it produces 1 mole of zinc sulfate and 1 mole of hydrogen.

Since sulfuric acid is in excess so Zinc is the limiting reagent

(Limiting reagent : Substance which get consumed when the reaction completes, limiting reagent helps in predicting the amount of products formed)

Limiting reagent (Zn) will decide the amount of Hydrogen produced

Zn(s) + H_{2}SO_{4}(aq) \rightarrow ZnSO_{4}(aq) + H_{2}(g)

1\ mole\ zinc\rightarrow 1\ mole\ H_{2}

So,

5\ mole\ zinc\rightarrow 5\ mole\ H_{2}

Hence moles of Hydrogen produced is 5 moles

3 0
2 years ago
What are some examples of chemistry research when it comes to energy
Airida [17]

Answer:

Here's what I've found

Explanation:

Refer to the attachment !

5 0
3 years ago
What is the gravitational force between two masses of 1 kg each kept at the distance of 1m?​
Eddi Din [679]

Answer:

<h2>F=Gm1m2r=G×1×11=G</h2>

Explanation:

<h2>______________________________</h2>

<h2>(*˘︶˘*).。*♡</h2>

<h2><em><u>PLEASE</u></em><em><u> MARK</u></em><em><u> ME</u></em><em><u> BRAINLIEST</u></em><em><u> AND</u></em><em><u> FOLLOW</u></em><em><u> M</u></em><em><u> E</u></em><em><u> LOTS</u></em><em><u> OF</u></em><em><u> LOVE</u></em><em><u> FROM</u></em><em><u> MY</u></em><em><u> HEART</u></em><em><u> AND</u></em><em><u> SOUL</u></em><em><u> DARLING</u></em><em><u> TEJASWINI</u></em><em><u> SINHA</u></em><em><u> HERE</u></em><em><u> ❤️</u></em></h2>
6 0
3 years ago
Other questions:
  • At what temperature is a gas likely to have the lowest rate of diffusion? 15° 21° 24° 30°
    7·2 answers
  • Four galaxies are gravitationally bound, with each maintaining its own shape. What is this structure called?
    13·2 answers
  • Grinding quartz crystals down to produce sand is an example of a
    10·1 answer
  • Define a catalyst and explain a catalyst's role in a<br> chemicalreaction.
    7·1 answer
  • How many bonds are present in HCI?<br><br> a) 1<br> b) 3<br> c) 4<br> d) 2
    10·2 answers
  • In any chemical compound , the elements are always combined in the same proportion by
    11·1 answer
  • Malik analyzed three samples to test which element was a metalloid. The table shows his results. A 7-column table with 3 rows. T
    14·2 answers
  • Please help fast<br>I WILL MARK YOU AS BRAINLIEST ​
    13·1 answer
  • Convert 530 grams of Sodium carbonate (Na2CO3) into moles of Sodium carbonate (Na2CO3)
    9·1 answer
  • How many Joules are there in 3301 calories? (1 cal = 4.18 J)
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!