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
densk [106]
2 years ago
7

What is the molecular formula of chalk ?

Chemistry
2 answers:
guapka [62]2 years ago
7 0

Answer:

CaCO3

Explanation:

Hope this helps!

NemiM [27]2 years ago
4 0

Explanation:

Calcium carbonate (Chalk) is a chemical compound, with the chemical formula CaCO3. Calcium carbonate (Chalk) is a chemical compound, with the chemical formula CaCO3.

You might be interested in
Help on 2 and 3 due tomorrow pls help
Luda [366]

Answer:

2

b= they are grouped differently, but all the atoms are still there.

4 0
2 years ago
The light-independent reactions of photosynthesis need
Oxana [17]

Answer:

I don’t know

Explanation:

3 0
3 years ago
If the two atoms participating in a bond have an electron negativity difference of 1.9 , what type of of bond would they be part
brilliants [131]

Answer:

Polar covalent bond.

Explanation:

When the bond is formed between the atoms by sharing the electrons the bond thus have covalent character.   The atom with larger electronegativity attract the electron pair more towards it self and becomes partial negative while the other atom becomes partial positive.  When the electronegativity difference is less than 0.4 the bond is non polar covalent.

When bonded atoms have greater electronegativity difference i.e 2 or greater than two the bond is ionic because electron is transfer from low electronegative atom to highest electronegative atom.

For example:

In water the electronegativity of oxygen is 3.44 and hydrogen is 2.2. That's why electron pair attracted more towards oxygen, thus oxygen becomes partial negative and hydrogen becomes partial positive.

In case of H₂, Cl₂, Br₂ the bond has very high covalent character because of zero electronegativity difference.

7 0
2 years ago
Na2SO3" represents sodium sulfite. What does the 4 mean in the formula 4Na2SO3? There are four atoms of sodium. There are four a
MArishka [77]

There are 4 atoms of sodium in the formula of sodium sulfite.

<h3 /><h3>Number of atoms at sodium</h3>

There are 4 atoms of sodium in the formula of sodium sulfite because 4 digit is placed before sodium which shows the number of sodium atom present in the molecule while on the other hand, 2 is placed in front of sulfur which tells us that 2 atoms of sulfur is used in the making of sodium sulfite.

<h3>Reasons of war</h3>

In this excerpt, Paine is attempting to convince the readers that we have righteous reasons to justify supporting the war. We should participate and take part in the war in order to defend ourselves and our country but avoid offensive war to gain financial benefits.

Learn more about war here: brainly.com/question/1174232

Learn more: brainly.com/question/26123703

6 0
2 years ago
Why does LiCl does not exhibit frenkel defect?
tino4ka555 [31]
Frenkel defect is a defect in crystalline solids in which an atom is displaced from its lattice position to an interstitial space. This creates a vacant space at the original site and an  interstitial defect at the new site within the same element. This defect does not affect the chemical properties of the compound. This defect usually occur in ionic solids with large size difference between the anion and cation.
LiCl does not exhibit Frenkel defect because the size difference between the anion and the cation of the compound is very small.
3 0
3 years ago
Other questions:
  • During the hot summer days, there is a lot more water in the air. This is due to which change of state?
    6·1 answer
  • What’s the PH and OH- of 6.0 x 10^-10?
    6·1 answer
  • Which sample of ethanol has particles with the highest average kinetic energy?
    8·2 answers
  • What method of heat transfer takes place when particles of matter move from one place to another in a liquid
    10·2 answers
  • Luminosity is the amount of energy emitted by a star each second. Stars radiate light over a broad range of frequencies in the e
    9·1 answer
  • 4 Na + O2 → 2 Na2O<br><br> 6.79 moles of O2 will react to form how many moles of Na2O?
    8·1 answer
  • PLEASE HELP ASAP!!!!!
    9·1 answer
  • What is the volume of a piece of metal that has a density of 6.68g.cm^3 and has a mass of 1975 g?
    7·1 answer
  • 1: How can you divide Pepper &amp; Sand to make a solution?
    14·2 answers
  • What change in volume results if 50 mL of gas is cooled from 30 C to 4 C
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!