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
iogann1982 [59]
2 years ago
13

State the number of neutrons in an atom of Ne-20 and the number of neutrons in an atom of Ne-22. choose two answers * 1 point Ne

20: 10 Ne 20: 11 Ne 22: 12 Ne 22: 13
Chemistry
1 answer:
saveliy_v [14]2 years ago
8 0

Answer:

Ne 20: 10

and

Ne 22: 12

Explanation:

Ne-20:

N = A - Z = 20 - 10 = 10 neutrons

Ne-22:

N = A - Z = 22 - 10 = 12 neutrons

N: number of neutrons

A: mass number

Z: atomic number

You might be interested in
Draw the Lewis structure for BrCl3. What are the approximate bond angles about the central atom?
Korvikt [17]

Answer:

Explanation:

BrCl₃ is an interhalogen compound with a hybridization of sp³d. The approximate bond angles can be predicted from the structure (attached below). Although, the lewis structure might be predicted to be trigonal bipyramidal from the structure, it is however a T-shaped geometry because of it's two lone pairs.

Also, from the structure attached, it can be predicted that the approximate bond angles about the central atom is 120° (360 ÷ 3) since each of the three chlorine atoms is equally spaced about the central atom.

7 0
2 years ago
Cu + 2AgNO3 →
netineya [11]

Answer: 292.54g of Ag

Explanation:

Cu + 2AgNO3 →Cu(NO3)2 + 2 Ag

mass conc. Of Ag = n x molar Mass

Mass conc. Of Ag = 2 x 108 = 216g

From the equation,

63.5g of Cu produced 216g of Ag

Therefore, 86g of Cu will produce Xg of Ag. i.e

Xg of Ag = (86 x 216)/63.5 = 292.54g

5 0
2 years ago
What is the second hottest layer of the atmosphere?
kherson [118]
Well, I say the answer is Thermosphere! Hope I helped :) 
7 0
3 years ago
What is one property that water and oil do not share
choli [55]

Answer:

Molecules of oil are bigger than of water and therefore do not mix.

Hope this helps

3 0
3 years ago
A buffer is made by dissolving H3PO4 and NaH2PO4 in water.
xeze [42]

Answer:

(a) H₃O⁺(aq) + H₂PO₄⁻(aq) ⟶ H₃PO₄(aq) + H₂O(ℓ)

(b) OH⁻(aq) + H₃O⁺(aq) ⟶ 2H₂O(ℓ)

Explanation:

The equation for your buffer equilibrium is:

H₃PO₄(aq) + H₂O(ℓ) ⇌ H₃O⁺(aq)+ H₂PO₄⁻(aq)

(a) Adding H₃O⁺

The hydronium ions react with the basic dihydrogen phosphate ions.

H₃O⁺(aq) + H₂PO₄⁻(aq) ⟶ H₃PO₄(aq) + H₂O(ℓ)

(b) Adding OH⁻

The OH⁻ ions react with the more acidic hydronium ions.

OH⁻(aq) + H₃O⁺(aq) ⟶ 2H₂O(ℓ)

4 0
3 years ago
Read 2 more answers
Other questions:
  • which type of cell is a rose thorn A prokaryotic B eukaryota plant C eukaryotic animal D chloroplastic
    13·2 answers
  • Which occurs during summer in the Northern Hemisphere? A. The earth is closer to the sun. B. The earth's axis is tilted so that
    14·1 answer
  • Describe how visible spectroscopy could be used to determine the order of a reaction in which a single colorless reactant produc
    10·1 answer
  • State 2 ways in which adaptation help animals?
    9·1 answer
  • What is the change in internal energy (ΔΕ) of a system when 5 kJ of work is done on the system while it releases 13 kJ of energy
    7·1 answer
  • HELP PLEASE I DONT KNOW WHAT THIS MEANS IM CONFUSED
    7·1 answer
  • Terry usually rides his bike 15mph. If his riding speed is reduced by 3mph how far can he ride in 1.7 hours
    11·1 answer
  • Characteristic of compounds​
    8·1 answer
  • 1. What is the molarity of a solution prepared by dissolving 3.11 grams of NaOH in
    10·1 answer
  • What type of chemical reaction is the reaction below?Fe2O3 + 3 Mg --> 2 Fe + 3 MgO
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!