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
gavmur [86]
3 years ago
5

Consider the nuclear equation below. Superscript 222 subscript 86 upper R n right arrow superscript 218 subscript question mark

upper P o plus superscript 4 subscript 2 upper H e. Which is the missing value that will balance the equation? 84 86 88 90

Chemistry
2 answers:
Romashka-Z-Leto [24]3 years ago
7 0

Answer:

it is 84!

Explanation:

7nadin3 [17]3 years ago
3 0

Answer:

84

Explanation:

From the question given above, it is evident that 222 86Rn is emitting alpha particle since the daughter nuclei produced has a mass number lesser than 4 when compared to parent element.

Therefore, the miss value in the equation is 84.

Please see attachment for further details

You might be interested in
Heat and pressure deep beneath Earths Surface any rock into
MrRa [10]
 METAMORPHIC ROCK                is if its correct 
                                                                                                                                                                                                                                             
5 0
3 years ago
Explain based on the HSAB concept ("hard and soft acids and bases") why NaCl is very soluble in water, where as AgCl is not.
Vesna [10]

Answer:

Na⁺ tends to interact with the hardest base, which is water. Ag⁺ tends to interact with the softest (hardless) base, which is Cl⁻.

Explanation:

The HSAB concept says that hard acids are small ions with low electronegativity, while hard bases are electron donating groups with high electronegativity and low polarizability. The HSAB concept also says that hard acids will tend to react with hard bases. The opposite is valid for soft acids and soft bases.

Na⁺ is a hard acid

Ag ⁺ is a soft acid

Cl⁻ is a hard base

H₂O is a harder base than Cl⁻

Therefore, when in water, the Na⁺ tends to react with water, because it is a harder base than Cl⁻. However, as Ag⁺ is a soft acid, it will tend to stay with the less hard base, which is Cl⁻.

6 0
3 years ago
Which statements about the equation shown above are correct? Check all that apply. It represents a reaction that involves rearra
mezya [45]

Answer: a and c

Explanation:

6 0
3 years ago
Read 2 more answers
Hi GUYS PLEASE HELP ME YOU KNOW I HELP YOU WHEN YOU NEED IT MOST SO HERE IT GOES WHICH SEQUENCE REPRESENTS THE ORDER OF DEVELOPM
exis [7]
To answer your question, the answer is number 1. hope this help
6 0
3 years ago
What happens to an object as its thermal energy increases?
aleksandr82 [10.1K]

Answer:

It heats up

Explanation:

7 0
3 years ago
Other questions:
  • the characteristic ions present in water solutions of acids are A) oxide ions B) chloride ions C)hydronium ions D)nitride ions
    15·1 answer
  • What is the empirical formula of C6H18O3?<br><br> CH3O<br> C2H5O<br> C2H6O<br> C2H5O5
    12·2 answers
  • The images show two metamorphic rock samples.<br> Which statement accurately describes these rocks
    14·1 answer
  • 30) How many grams of CH3OH must be added to water to prepare 210 mL of a solution that is
    15·1 answer
  • Gas Laws
    15·1 answer
  • Cual es el número de átomos de platino en un catalizador que funciona con 0.03 grs de platino
    9·1 answer
  • Write the complete nuclear symbol for a nucleus of oxygen with 8 protons &amp; 10 neutrons?
    15·1 answer
  • HELP PLEASEEEEEE I BEG U
    9·2 answers
  • Please someone help or tell me the answer for number 2 its a quiz grade
    10·1 answer
  • As the psub(K,a) of a series of weak acids increases, the strength of their corresponding conjugate bases will
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!