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
pochemuha
3 years ago
15

Where does most of the mass of an atom exist?

Chemistry
1 answer:
Yakvenalex [24]3 years ago
3 0
In the nucleus. The nucleus is where the protons and the neutrons of the atoms are. Electrons are only have around 1/2000 of a proton's mass, so it is usually ignored
You might be interested in
The. bond dissociation enthalpies of the H-H bond and the H-Cl bond are 435 kJ mol^-1 and 431 kJ mol^-1, respectively. The ΔHfO
Novay_Z [31]

The bond dissociation energy of the Cl - Cl bond is -958 kJ mol^-1.

<h3>What is the dissociation enthalpy?</h3>

Given that;

H-H bond energy =  435 kJ mol^-1

H-Cl bond energy = 431 kJ mol^-1

ΔHfO of HCL(g) = -92kJ mol^-1

Bond dissociation enthalpy of the Cl-Cl bond = x

-92 = 435  +  431 + x

x = -92 - (435  +  431)

x = -958 kJ mol^-1

Learn More about dissociation enthalpy:brainly.com/question/9998007?

#SPJ1

6 0
1 year ago
How would the world be different if people were not aware of radioactive decay
allsm [11]

Answer:

everyone would die

Explanation:

if we did not know about it we would not do anything about it

6 0
3 years ago
Which statement describes the blood type of a person with the alleles Ai?
lyudmila [28]

Answer:

d i dont now but im sure my answer is d im not good to write english word

5 0
3 years ago
How many grams in 6.20 x 10^25 atoms of bromine (Br) ? image attached , will give brainliest
Deffense [45]

Answer:

8239.2g

Explanation:

Given parameters:

Number of atoms in Br  = 6.2 x 10²⁵atoms

Unknown:

Mass of Br = ?

Solution:

From mole concepts, we know that:

       1 mole of a substance contains 6.02 x 10²³ atoms/mol

 Molar mass of Br  = 80g/mol

6.2 x 10²⁵atoms  x \frac{1}{6.02 x 10^{23} } \frac{mol}{atoms} x  80 x \frac{g}{moles}  

          = 8239.2g

8 0
3 years ago
Comparison between alkyl nucleophilic substitution with acyl nucleophilic substitution
S_A_V [24]

Answer:

in both nucleophil attach the c and leaving group leave but in acyl nu. subsituation c of carbonyl because of double bond with o have bigger positive charge and is better electrophil so do it faster,also alkyl nu. subsituation can have rearangment if going from sn1 and in sn2 sterichemistry of molecule change , acyl nu. subsituation most of time is better

4 0
3 years ago
Other questions:
  • Is this equation completely balanced? 2C8H8 + 25O2 8CO2 + 18H2O
    15·2 answers
  • What is the coefficient in a chemical equation
    6·2 answers
  • The major source of aluminum in the world this bauxite (mostly aluminum oxide). It’s thermal decomposition can be represented by
    15·1 answer
  • In descriptive scientific investigations, scientists often make observations to understand the interacting parts of a complex (b
    7·1 answer
  • What factors determine an objects kinetic energy
    10·2 answers
  • All of the following are true about science except (2 points)
    15·1 answer
  • A conversion factor is a fraction that is always equal to what number
    5·1 answer
  • Give the IUPAC name for the following compound. Group of answer choices 6-Ethyl-6-methylhept-3-yne 6,6-Dimethyloct-3-yne 3,3-Dim
    5·1 answer
  • Can someone help me with these two?
    6·2 answers
  • NO GO*GLE ANSWERS PLEASE!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!