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
Soloha48 [4]
3 years ago
13

Which element will have the greatest attraction for the calcium electrons?

Chemistry
1 answer:
ratelena [41]3 years ago
6 0
Its would be fluorine as its the most electronegative 

hope that helps <span />
You might be interested in
Which of the example most complete description an objects motion?
Rashid [163]
<span>c] The golfer sent the golf ball flying toward the cup to score a hole in one.</span>
4 0
3 years ago
In the gas egquation PV=RT, V stands for volume of
Wittaler [7]

Ans: B . 1 mole of gas

Explanation:

...

7 0
3 years ago
1.86 g H2 is allowed to react with 9.75 g N2 , producing 2.87g NH3.
svet-max [94.6K]

Answer:

                     (a)  Theoretical Yield  =  10.50 g

                      (b)   %age yield  = 27.33 %

Explanation:

Answer-Part-(a)

                 The balance chemical equation for the synthesis of Ammonia is as follow;

                                          N₂ + 3 H₂ → 2 NH₃

Step 1: Calculating moles of N₂ as;

                   Moles = Mass / M/Mass

                   Moles = 9.75 g / 28.01 g/mol

                   Moles = 0.348 moles of N₂

Step 2: Calculating moles of H₂ as;

                   Moles = Mass / M/Mass

                   Moles = 1.86 g / 2.01 g/mol

                   Moles = 0.925 moles

Step 3: Finding Limiting reagent as;

According to equation,

                1 mole of N₂ reacts with  =  3 moles of H₂

So,

             0.348 moles of N₂ will react with  =  X moles of H₂

Solving for X,

                     X = 3 mol × 0.348 mol / 1 mol

                     X = 1.044 mol of H₂

It shows that to consume 0.348 moles of N₂ completely we require 1.044 mol of Hydrogen while, as given in statement we are only provided with 0.925 moles of H₂ hence, hydrogen  is limiting reagent. Therefore, H₂ will control the final yield.

Step 4: Calculating moles of Ammonia as,

According to equation,

                3 mole of H₂ produces  =  2 moles of NH₃

So,

             0.925 moles of H₂ will produce  =  X moles of NH₃

Solving for X,

                     X = 2 mol × 0.925 mol / 3 mol

                     X = 0.616 mol of NH₃

Step 5: Calculating theoretical yield of Ammonia as,

                     Theoretical Yield  =  Moles × M.Mass

                     Theoretical Yield  =  0.616 mol  × 17.03 g/mol

                     Theoretical Yield  =  10.50 g

Answer-Part-(b)

                    %age yield  = Actual Yield / Theoretical Yield × 100

                    %age yield  = 2.87 g / 10.50 g × 100

                    %age yield  = 27.33 %

4 0
3 years ago
A change in velocity can occur without a change in speed *<br> A: True<br><br> B: False?
Mrrafil [7]

Answer: True

Explanation: For example, changing direction can change velocity

6 0
2 years ago
Read 2 more answers
What is the product for MgBr2+ Cl2
nikklg [1K]

???...........…..............

5 0
3 years ago
Other questions:
  • Given the following equation: 8 Fe + S8 —&gt; 8 FeS what mass of iron is needed to react with 5.65 mol of sulfur S8
    6·1 answer
  • Write and balance the equation for the decomposition of aluminum chloride into its elements. phase symbols are optional.
    15·2 answers
  • The environment needs to what for natural selection to occur
    8·2 answers
  • The weight of an object is the product of its mass, m, and the acceleration of gravity, g (where g=9.8 m/s2). If an object’s mas
    5·2 answers
  • Why are chemical changes considered "unseen?"
    7·2 answers
  • A sample of marble has a volume of 6 cm3 and a density of 2.76 g/cm3. What is its mass?
    6·2 answers
  • A certain reaction has an activation energy of 67.0 kJ/mol and a frequency factor of A1 = 4.20×1012. What is the rate constant,
    9·1 answer
  • Reactions that affect the nucleus of an atom are called
    14·1 answer
  • Q2. Which of the following molecules may show.
    14·1 answer
  • Water Erosion: Cause and Effect
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!