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
pogonyaev
3 years ago
5

In a molecule of calcium sulfide, calcium has two valence electron bonds, and a sulfur atom has six valence electrons. How many

lone pairs of electrons are present in the Lewis structure of calcium sulfide? one two three four none

Chemistry
2 answers:
allochka39001 [22]3 years ago
8 0
Their are 4 valence electrons left, which means there is 2 lone pairs. I think.

Vedmedyk [2.9K]3 years ago
7 0

Answer: Option (b) is the correct answer.

Explanation:

Chemical formula of calcium sulfide is CaS. Since there are two valence electrons in calcium and six valence electrons in sulfur.

So, in order to attain stability, calcium will donate its two extra electrons to the sulfur atom. Therefore, calcium sulfide is an ionic compound.

Thus, we can conclude that there will be only two lone pair of electrons in a calcium sulfide molecule.

You might be interested in
What is the single replacement reaction of Zinc + Lead(iv) Chloride
ExtremeBDS [4]

Answer:

2Zn+PbCl_4\rightarrow 2ZnCl_2+Pb

Explanation:

Hello there!

In this case, when referring to single replacement reactions, it is crucial for us to figure out the formula of the starting reactants; thus, we know zinc is Zn and lead (IV) chloride is PbCl₄. In such a way, the reaction proceeds as follows:

Zn+PbCl_4\rightarrow ZnCl_2+Pb

Which must be balanced as shown below:

2Zn+PbCl_4\rightarrow 2ZnCl_2+Pb

Regards!

4 0
3 years ago
What makes the smell in chlorine?
padilas [110]

Pool smell is due, not to chlorine, but to chloramines, chemical compounds that build up in pool water when it is improperly treated. Chloramines result from the combination of two ingredients: (a) chlorine disinfectants and (b) perspiration, oils and urine that enter pools on the bodies of swimmers.


7 0
3 years ago
How many valence electrons does B (boron) have?<br> A. 13<br> B. 5<br> C. 10<br> D. 3
pshichka [43]

Answer:

Boron has 3 valence electrons

8 0
3 years ago
Sea water has about 56.0 grams of NaCl for every 2.0 liters of water. what is the molarity?
Effectus [21]
5.60 cuz I I’m dumb vendbsnksnddn
3 0
3 years ago
Element: calcium symbol: Ca Atomic weight: g Mass of one mole: g/mol
Elena-2011 [213]

153g/mols I think this is the answer but not 100% sure.


6 0
3 years ago
Other questions:
  • The first dissociation constant of a diprotic acid is always larger than the second. a. True b. False
    5·1 answer
  • Chemistry: An oxygen gas container has a volume of 20.0 L. How many grams of oxygen are in the container, if the gas has a press
    9·1 answer
  • Experiment predicted observation A student has two unopened cans containing carbonated water. Can A has been stored in the garag
    6·1 answer
  • Suppose an aqueous solution containing 1.25 g of lead(II) acetate is treated with 5.95 g of carbon diox- ide. Calculate the theo
    9·1 answer
  • I’ve been stuck on these 5 questions!? Can you guys help?!
    8·1 answer
  • Which of these is an example of a chemical reaction that occurs at a very slow rate
    12·2 answers
  • How do the melting and boiling points of pure water differ from those of a sugar-water solution?
    14·2 answers
  • Temperature (average kinetic energy) affects the density of a substance.<br><br> True<br> False
    12·2 answers
  • Help please. a container has a mixture of iron fillings and sand.​
    7·1 answer
  • What is the molarity of 985 mL solution with 0.81 moles KF?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!