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
bezimeni [28]
3 years ago
13

Explain how you can estimate the number of neutrons in the atoms of an element.

Chemistry
2 answers:
Neko [114]3 years ago
7 0
According to google, to determine the number of neutrons in atom, we only have to subtract the number of protons from the mass number. the nucleus of an atom is composed of protons and neutrons. And the number of particles present in the nucleus is referred as mass number (Also, called as atomic mass).
marissa [1.9K]3 years ago
3 0
So, to determine the number of neutrons in atom, we only have to subtract the number of protons from the mass number. Take note that the nucleus of an atom is composed of protons and neutrons. And the number of particles present in the nucleus is referred as mass number (Also, called as atomic mass).
You might be interested in
10 To become positively charged, an atom must: A Galn a proton B Lose a proton C С. Galn an electron D Lose an electron } ​
Studentka2010 [4]

Answer:

D: lose an electron

Explanation:

when an atom loses an electron it's positively charged and when it gain an electron it is negatively charged

6 0
3 years ago
The enthalpy of fusion of methanol (CH3OH) is 3.16 kJ/mol. How much heat would be absorbed or released upon freezing 25.6 grams
Verdich [7]

Answer:

There is  2.52 kJ of energy released (option 4)

Explanation:

Step 1: Data given

The enthalpy of fusion of methanol (CH3OH) is 3.16 kJ/mol

Mass of methanol = 25.6 grams

Molar mass of methanol = 32.04 g/mol

Step 2: Calculate moles of methanol

Moles methanol = mass methanol / molar mass methanol

Moles methanol = 25.6 grams / 32.04 g/mol

Moles methanol = 0.799 moles

Step 3: Calculate energy transfer

Energy  transfer = moles * enthalpy of fusion

Energy = 0.799 moles * 3.16 kJ/mol

Energy = 2.52 kJ released

There is  2.52 kJ of energy released

6 0
2 years ago
Help ASAP PLEASE !!!!!!
expeople1 [14]
The answer would be B.  Increased fertility downstream. Hope this helps. It's been a while since iv'e done the test, but I think this is the correct answer.

4 0
3 years ago
What a three of the signs of an allergic reaction to iv t-pa?
Anna007 [38]
Look out for angioedema (like hives but a deeper swelling due to an allergic reacrion), bleeding (such as intracranial, gastrointestinal and genitourinal hemorrhaging) and adverse reactions to drugs. Nausea, blood pressure spikes, severe headaches, acute hypertsnsion, etc are other signs of negative reacrions to iv t-pa as well.
8 0
3 years ago
Concerning the 10.0 mL of 0.50 M NaCl 100 mL of soltion:Does the dilution change the concentration
disa [49]
The answer is affirmative because <span>dilutions give you a weaker Molarity 
Plase see this in the dilution formula that follows:

C1V1 = C2V2 
(0.50M) (10.00ml) = (C2) (100ml) 
C2 = 0.050 M 
10X's weaker
</span>Hope this helps a lot 
6 0
3 years ago
Read 2 more answers
Other questions:
  • Just need some help with this stuff, answer please :)
    12·2 answers
  • What is the major product of the calvin-benson cycle that can then be used to form glucose?
    15·1 answer
  • What holds combinations of atoms together in molecules?
    11·2 answers
  • 12. The particles that are found in the nucleus of an atom are
    12·1 answer
  • Define position and reference point in your own words. Dont copy and paste!
    12·1 answer
  • VICHELRING CONCEN<br>1. Water is a<br>molecule.​
    7·1 answer
  • The name of the ion P3- is phosphoride ion.<br><br> True<br> False
    5·1 answer
  • What is the pH of a solution whose hydronium concentration is 3.5 x 10^(-3) M?<br><br> Thanks!
    10·1 answer
  • What impact did the Spanish have on the region of South America?
    11·1 answer
  • Two students conduct the same experiment, but they get different results. What should the students do next?A.The students should
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!