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
scoundrel [369]
3 years ago
5

The atomic number of F plus the atomic number of Na equals the atomic number of this element

Chemistry
2 answers:
miss Akunina [59]3 years ago
5 0

Explanation:

Atomic number means the sum of total number of protons present in an element.

Atomic number of fluorine is 9 whereas atomic number of sodium is 11.

Therefore, atomic number of F + atomic number of Na

                 = 9 + 11

                 = 20

It is known that calcium is the element that has atomic number 20. Its electronic distribution is 2, 8, 8, 2.

Thus, we can conclude that the atomic number of F plus the atomic number of Na equals the atomic number of element calcium.

myrzilka [38]3 years ago
3 0
Atomic number of F = 9.
Atomic number of Na = 11. 

Atomic number of F + Atomic number of Na = 9+11 = 20
Atomic number of Ca = 20

Therefore the atomic number of F plus the atomic number of Na equals the atomic number of Ca. 

Hope this helps you, have a great day ahead!

You might be interested in
A 50.0-ml sample of 0.200 m sodium hydroxide is titrated with 0.200 m nitric acid. calculate the ph in the titration after you a
attashe74 [19]

Hey there!:

Concentration of NaOH = 0.200 M

Concentration of HNO₃= 0.200 M

Total volume =  50.0 mL + 60.0 mL = 110 mL=> 0.11 L

The neutralization reaction between  NaOH and HNO3 :

OH⁻  + H⁺  ---------->  H₂O

So :

n ( H⁺ ) = 60 mL * 0.200 M / 1000 mL  => 0.012 moles of H⁺

n ( OH⁻ ) = 50 mL 0.200 M / 1000 mL => 0.01 moles of OH⁻

Hence OH⁻ is limiting reagent  .

Remaining moles of  H⁺ = 0.012 - 0.01  =>  0.002 moles

Concentration of H⁺  = 0.002 M / 0.11 L

Concentration of H⁺ = 0.01818 moles/L

Therefore:

pH = - log [ H⁺ ]

pH = - log [ 0.01818 ]

pH = 1.74

Hope that helps!

7 0
3 years ago
HURRY WILL MARK BRAINILEST
DanielleElmas [232]
I don’t know the author or what book/literary work this is, but could be how proteins are produced.
8 0
3 years ago
Read 2 more answers
Teacher asks a group of students to measure The amplitude of the wave. Which labeled part on the image is the amplitude?
alexira [117]

Answer:

start from the crest down

Explanation:

3 0
4 years ago
What is the uncertainty of a 10ml pipet?​
EleoNora [17]

Answer: the certain of a 10ml pipet is listed as, 10.00 0.02,

Explanation: those numbers are close to 4 significant figures as in (10ml) around the amount you're looking for. , hope that makes sense!

3 0
3 years ago
An insoluble solid formed during a reaction is called a ________________________.
olga55 [171]
An insoluble solid formed during a reaction is called a Precipitate. 
7 0
3 years ago
Read 2 more answers
Other questions:
  • Status: No credit Points earned: 0.00/1.00
    9·1 answer
  • If you dissolve 23 g of ammonium chloride in 500.0 mL of water, what is the molar concentration of the solution?
    6·1 answer
  • Which of the following is a possible equivalence that can be used in a conversion
    13·1 answer
  • Calculate the millimoles of solute in 2.25 L of a 0.00645 M NaCN solution. millimoles: mmol NaCN Calculate the millimoles of sol
    11·1 answer
  • Explain whether nitrogen atoms will form bonds with other atoms
    12·1 answer
  • If someone told you they had a career in either ecology, paleontology, or botany, what area of science is this?
    14·1 answer
  • How much heat in kilojoules is evolved in converting 2.00 mol of steam at 150 ∘C to ice at -55.0 ∘C? The heat capacity of steam
    14·1 answer
  • What is held in the nucleus of an atom?
    9·1 answer
  • The reactants in a chemical reaction contain 900 J of chemical energy. The products of the reaction contain 9000 J of chemical e
    15·2 answers
  • Show by calculation which process produces more energy per gram of material reacting
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!