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
vesna_86 [32]
2 years ago
5

An atom of Calcium has 2 valence electrons and an atom of sulfur has 6 valence electrons. How many lone pairs of electrons are p

resent in the Lewis structure of Calcium Sulfide? one two three four none
Chemistry
1 answer:
Anarel [89]2 years ago
7 0
The answer is 2. this is what it would look like 

:Ca = S: 

 Hope this helps 
You might be interested in
A solid substance that has a naturally geometric shape with symmetrically arranged plane faces
Arisa [49]
It is a Crystalline
3 0
2 years ago
Read 2 more answers
What is the structural formula of 2-methylbutan-2-ol (sometimes called 2-methyl-2-butanol)?
grigory [225]
<span>The structural formula of 2-methylbutan-2-ol is in Word document below.
</span>2-methyl-2-butanol is organic compound and belongs to alcohols. Hydroxyl <span>functional group is on second saturated carbon atom of butane and also methyl group (-CH</span>₃) is on second saturated carbon atom of main chain (butane).<span>

</span>
Download docx
4 0
2 years ago
Read 2 more answers
Which of the following best defines the internal energy of a system?
Anarel [89]
 <span>In thermodynamics, the internal energy of a thermodynamic system, or a body with well-defined boundaries, denoted by U, or sometimes E, is the total of the kinetic energy due to the motion of molecules (translational, rotational, vibrational) and the potential energy associated with the vibrational and electric energy of atoms within molecules or crystals. It includes the energy in all the chemical bonds, and the energy of the free, conduction electrons in metals.</span>
7 0
2 years ago
What is meant by the term sensitivity in Analytical Chemistry? (a) The term refers to the limit at which the absorption instrume
ivolga24 [154]

The term sensitivity in Analytical Chemistry is "the slope of the calibration curve or a function of analyte concentration or amount".

<u>Answer:</u> Option B

<u>Explanation:</u>

In a sample, the little amounts of substances can be accurately evaluated by a method is termed as "Analytical sensitivity". This detect a target analyte like an antibody or antigen, process is considered as potential of a test to and generally demonstrated as the analyte's minimum detectable concentration.

The acceptable diagnostic sensitivity is not guaranteed by high analytical sensitivity. The percentage of individuals who have a given disarray who are identified by the method as positive for the disarray is known as "Diagnostic sensitivity".

6 0
3 years ago
What was the name for the secret code used by many alchemists?
ahrayia [7]

Answer:

A. Zodiac

B. Palingenesis

C. Palabra mysteria

D. Decknamen

The correct answer is D. Decknamen.

Explanation:

5 0
2 years ago
Other questions:
  • What is the value of X?
    8·2 answers
  • Which change increases the amount of iron produced in the equation fe3o4(s) 4h2(g) energy?
    10·1 answer
  • A student noticed while doing the neutralization experiment that the calorimeter kept getting warmer. how would this error affec
    6·1 answer
  • If D+2 would react with E!, what do you predict to be the formula?
    7·1 answer
  • Use the given Nernst equation and reaction to solve this problem. What is the potential of this cell with the given conditions?
    6·1 answer
  • WILL GIVE BRAINLIEST TO PERSON WHO ANSWERS FASTEST AND CORRECT BUT ANY ANSWERS TO JUST GET POINTS WILL GET REPORTED AND DELETED
    5·2 answers
  • What makes a metal and a non metal most
    10·1 answer
  • 1) An unlabeled laboratory solution is found to contain a H+ ion concentration of 1 x 10-4
    15·1 answer
  • A 3.50 L balloon contains 0.178 mol of gas. If 0.094 mol of gas is
    15·1 answer
  • ●
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!