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
crimeas [40]
3 years ago
13

Why must there be two chlorine atoms for every one calcium atom

Chemistry
1 answer:
Nady [450]3 years ago
4 0

Answer:

There must be two Chlorine atoms for every one Calcium atom in order to fulfill Chlorine's octet rule and pair Calcium's unpaired electrons.

Explanation:

Calcium has two unpaired electrons in its Lewis dot structure, while Chlorine has one unpaired electron.

<em>So why can't we just make a double bond for </em><em>one</em><em> Chlorine?</em>

Chlorine has seven valence electrons, so once it shares electrons with Calcium, the octet rule is accomplished, and no more pairs can be made.

You might be interested in
Research on the causes of ozone layer depletion and classify whether the
storchak [24]

Answer:

The health effects of ozone layer depletion is discussed below

Explanation:

. Ozone layer depletion effects improved UV radiation levels at the

Earth's covering, which is degrading to human well-being.

Negative consequences involve improvements in several varieties of

skin cancers, eye cataracts, and immune insufficiency diseases.

• Ozone layer exhaustion improves the quantity of UVB that touches the

Earth's exterior.

7 0
2 years ago
In 1665 Sir Isaac Newton proposed the fundamental law of gravitation as a universal force of attraction between any two bodies.
natka813 [3]

B. They are the same force. Each body acts on the other. The moon and the earth, and the apple and the earth.

8 0
3 years ago
Read 2 more answers
Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional
slega [8]

Answer:

Coal mining can compromised a lot of our resources one of it is the soil. It is because it eliminates the nutrients of the soil that can affect the vegetation, it destroys the wildlife and habitat. Also, it changes permanently the topography of the area mined.

Explanation:

edge 2020 just did it !!!

8 0
3 years ago
The first task you are assigned in your summer laboratory job is to prepare a concentrated naoh stock solution. the molecular we
tensa zangetsu [6.8K]

240 g NaOH

<em>Step 1</em>. Calculate the moles of NaOH

Moles of NaOH = 0.750 L solution × (8 mol NaOH/1 L solution) = 6 mol NaOH

Step 2. Calculate the mass of NaOH

Mass of NaOH = 6 mol NaOH × (40 g NaOH/1 mol NaOH) = 240 g NaOH

7 0
3 years ago
How many grams of hydrogen are needed to react with 1.40 g of nitrogen to produce ammonia?
vazorg [7]

Answer:

Write a balanced chemical reaction:

N2 + 3H2 ==> 2NH3

Looking at the mole ratios in this balanced equation you can see it takes 3 moles H2 to make 2 moles NH3.  So, next calculate the moles of NH3 represented by 1.80 g and then convert to moles of H2 needed:

moles of NH3 = 1.80 g x 1 mole/17 g = 0.106 moles NH3

Moles H2 needed = 0.106 moles NH3 x 3 moles H2/2 moles NH3 = 0.159 moles H2 needed

Grams H2 needed = 0.159 moles x 2 g/mole = 0.318 grams H2 needed

Explanation:

8 0
2 years ago
Other questions:
  • During a lab activity, students prepared two solutions separately at the same temperature. Later they mixed the solutions and th
    7·1 answer
  • The solubility of a gas in water is 0.22 g/L at 20.0 kPa of pressure. What is the solubility when the pressure is increased to 1
    5·1 answer
  • Which factors affect heat transfer brtween a warm and a cool substance
    10·1 answer
  • What is the best name for the molecule below? (2 points)
    12·2 answers
  • All of the following are examples of suspensions except what?:
    15·1 answer
  • I need to write an essay on the help benefits of plants! You do not need to write an entire essay, but I would like points and w
    14·1 answer
  • What is the main gas in our atmosphere?
    15·2 answers
  • True or false; some organisms are not affected by any abiotic factors
    10·2 answers
  • 31. A mixture with sand, pink sugar and water would be best separated using
    5·1 answer
  • (Pleaseeee help me) List 3 things you should talk about in a good conclusion?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!