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
Zolol [24]
3 years ago
7

What is the most likely charge on an ion formed by an element with a valence electron configuration of ns2np4

Chemistry
1 answer:
Andreas93 [3]3 years ago
6 0

Answer:

2-

Explanation:

For an element to be stable, it must follow the octet rule: an atom will gain, lose or share electrons until its valence shell is complete with 8 electrons.

An element with the valence electron configuration ns²np⁴ has 6 (2+4) electrons in its valence shell. Thus, in order to fulfill the octet, it will gain 2 electrons. As a consequence, it will form an anion with charge 2-.

You might be interested in
Why do gasses condense when cooled
Darya [45]
Gassed condense because molecules decrease inside
6 0
3 years ago
Determine the amount of heat (in kj) required to vaporize 1.55 kg of water at its boiling point. for water, δhvap
Usimov [2.4K]
Heat required to vaporize 1 mol of water from water at 100C to steam at 100C = 40.7 kJ 
<span>1 mol of water weighs =  18.015g
</span>1.55 kg = <span>1550/18.015 mol = 86.03 mol 

</span><span>Heat required to vaporize :
</span>= 86.03 mol  x <span>40.7 kJ 
</span>
= 3501.421 kJ
5 0
3 years ago
Which of these can be determined based on the knowledge about weather?
PtichkaEL [24]
<span>A: best time to go fishing at sea</span>
6 0
3 years ago
Read 2 more answers
IDENTIFY THE NUMBER OF SIGNIFICANT FIGURES IN EACH OF THESE MEASUREMENTS OF AN OBJECT: 76.47 AND 76.59
murzikaleks [220]

Answer:

they both have 4 sig figs:)

Explanation:

8 0
3 years ago
Calculate δs∘rxn for the reaction2no(g) o2(g)→2no2(g)express your answer to one decimal place and include the appropriate units
Anna35 [415]

The δs∘rxn  for the reaction 2NO(g) + O_{2} → 2NO_{2} (g) will be -146 J/K.

Entropy would be a measurable physical characteristic and a scientific notion that is frequently connected to a condition of disorder, unpredictability, or uncertainty.

Entropy would be a measurement of the system's unpredictability or disorder. The entropy increases as randomness do. It has broad properties as well as a state function. It has the unit JK^{-1} mol^{-1}.

Entropy of the reaction can be calculated by the reaction.

ΔS^{0} rxn = 2 mol × S^{0} (NO_{2} (g) - 2 mol × S^{0} NO (g) - 1 mol × S^{0} (O_{2} )

ΔS^{0} rxn  = 2 mol × 240 J/mol.K - 2 mol × 210 J/mol.K-1 mol  ×205.2 J/mol.K

ΔS^{0} rxn  = -146.8 J/K

Therefore, the δs∘rxn  for the reaction 2NO(g) + O_{2} → 2NO_{2} (g) will be -146 J/K.

To know more about reaction

brainly.com/question/20305735

#SPJ4

4 0
1 year ago
Other questions:
  • What kind of scientist would study the effects of acid rain on marble statues?
    11·1 answer
  • 9. Which of the following concentrations has units of moles of solute per liter of solution?
    12·1 answer
  • What month and what year did Matthias Schleiden contribute to the cell theory.
    13·1 answer
  • According to kinetic-molecular theory, which of the following would not be considered an ideal gas? Check all that apply.
    8·2 answers
  • Move the red warning icon to focus of the earthquake.
    10·1 answer
  • Suppose that we combined 75 g of magnesium with 45 g of nitrogen and heat them up. Predict the product of
    8·1 answer
  • How does the entropy of a geyser system change as energy is added to the system ??
    8·1 answer
  • What kind of chemical do we release when we help others?
    15·2 answers
  • 42,000 mL is equal to L
    7·1 answer
  • What product is obtained from the reaction of sulfuric acid acetic acid and 1 pentanol.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!