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
zvonat [6]
3 years ago
5

The mass number of an element is equal to

Chemistry
1 answer:
klasskru [66]3 years ago
8 0

Answer:

The mass number is defined as the total number of protons and neutrons in an atom.

Explanation:

You might be interested in
The mass of a deuterium nucleus 21H is less than its components masses. Calculate the mass defect.________ amu
Inessa [10]

Answer:

The mass defect of a deuterium nucleus is 0.001848 amu.

Explanation:

The deuterium is:

^{A}_{Z}X \rightarrow ^{2}_{1}H  

The mass defect can be calculated by using the following equation:

\Delta m = [Zm_{p} + (A - Z)m_{n}] - m_{a}

Where:

Z: is the number of protons = 1

A: is the mass number = 2      

m_{p}: is the proton's mass = 1.00728 amu  

m_{n}: is the neutron's mass = 1.00867 amu

m_{a}: is the mass of deuterium = 2.01410178 amu

Then, the mass defect is:

\Delta m = [1.00728 amu + (2- 1)1.00867 amu] - 2.01410178 amu = 0.001848 amu

Therefore, the mass defect of a deuterium nucleus is 0.001848 amu.

I hope it helps you!  

5 0
3 years ago
Read 2 more answers
In a neutralization reaction, an aqueous solution of an arrhenius acid reacts with an aqueous solution of an arrhenius base to p
dem82 [27]

An aqueous solution of an arrhenius acid reacts with an aqueous solution of an arrhenius base to produce water and salt.

<h3>What is a Salt?</h3>

This is a compound which is formed as a result of a neutralization reaction between acid and base.

Arrhenius acid reacts with an aqueous solution of an arrhenius base to produce water and salt due to increased concentration of H+ and OH- respectively.

Read more about Salt here brainly.com/question/13818836

#SPJ1

6 0
2 years ago
How can you overcome drawback of a chemaicl equation ? any three​
Shtirlitz [24]

Answer:

1.rate of reaction should be indicated by symbols 2.we should indicate physical states by sybloms 3.reversible reaction should be indicated by using double arrows

4 0
3 years ago
Iron (Fe) reacts with copper sulfate (CuSO4) to form iron (II) sulfate. In this reaction, Cu2+ gains electrons to form Cu. Which
Zanzabum
Remember, OIL RIG 
Oxygen Is Loss of electrons 
Reduction Is Gain of electrons 

If something goes from + to - then it has gained electrons 
If something goes from neutral to - it has gained electrons 
If it goes from - to + is loses electrons 
If it goes from neutral to + it loses electrons 

If something is oxidised, it is a reducing agent 
If something is reduced, it is an oxidising agent 


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
6 0
3 years ago
Sodium(na) is a highly reactive metal and chlorine is a poisonous gas. Which compound do they form when they chemically combine?
Nastasia [14]
It would form into NaCl because Na has a +1 charge while Cl has a -1 charge.
7 0
3 years ago
Read 2 more answers
Other questions:
  • What happens when acid and base are mixed together
    14·1 answer
  • Which element would chemically react with oxygen​
    14·1 answer
  • For the reaction 3F2 + Cl2 --&gt; 2ClF3 what is the maximum amount of ClF3 which could be formed from 9.86 g of F2 and 17.46 of
    11·1 answer
  • What are alveoli and what do they do?
    15·2 answers
  • What is the independent variable of Smithers experience?
    10·1 answer
  • Calculate the mass of chloroform that contains 1.00X10^12 molecules of chloroform
    12·1 answer
  • What will happen to earth if earth stop spinning?
    15·1 answer
  • The equilibrium constant for the reaction AgBr(s) Picture Ag+(aq) + Br− (aq) is the solubility product constant, Ksp = 7.7 × 10−
    11·1 answer
  • ¿Por qué el volcán causa una explosión?
    12·1 answer
  • 12.0 grams of sodium reacts with 5.00 grams of chlorine. What mass of sodium chloride could be produced?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!