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
vlada-n [284]
3 years ago
9

An electron has _____.

Chemistry
1 answer:
irina [24]3 years ago
7 0

Answer:

An electron has more mass than a proton or a neutron.

Explanation:

Mass of electron - 9.109 e-31 kg

hope it helps!!

You might be interested in
The reaction below is at dynamic equilibrium. mc004-1.jpg Which statement is true for the equilibrium system? The concentration
enyata [817]
When a system is in dynamic equilibrium, the forward reaction rate and the backward reaction rate are equal or occurs at the same rate. Therefore, the third option above is the most accurate one. Hope this answers the question. Have a nice day.
4 0
3 years ago
Read 2 more answers
44.2124+0.81+7.335 significant digits
zhenek [66]

52  

Explanation:

We need to understand and apply the rules of significant figures when carrying out addition operations to solve this problem:

Rules of significant figures:

  • Non-zero digits are always significant in a given number
  • Any zeros between two significant digits are significant.
  • A final zero or trailing zeros in the decimal portion is significant.
  • Any leading zero in a decimal is significant.

In addition, the answer of the sum is given to the least number of significant digits of the given numbers:

 

        44.2124

    +    0.81

    +    7.335

sum  52.3574          

Now the least number of significant figure is 2 as seen in 0.81

we round the sum up to 52  

learn more:

Significant numbers brainly.com/question/6384538

#learnwithBrainly

4 0
3 years ago
Kathy is going to do an experiment in which she will grow bacteriain four prepared petri dishes:
mash [69]

Unwashed ==> Most bacteria

Sanitizer == Will have less than Unwashed

Washed ==> least amount of bacteria

8 0
2 years ago
The vapor pressure of substance X is 100. mm Hg at 1080.°C. The vapor pressure of substance X increases to 600. mm Hg at 1220.°C
artcher [175]

Explanation:

The given data is as follows.

         P_{1} = 100 mm Hg or \frac{100}{760}atm = 0.13157 atm

         T_{1} = 1080 ^{o}C = (1080 + 273) K = 1357 K

         T_{2} = 1220 ^{o}C = (1220 + 273) K = 1493 K

         P_{2} = 600 mm Hg or \frac{600}{760}atm = 0.7895 atm

          R = 8.314 J/K mol

According to Clasius-Clapeyron equation,

                   log(\frac{P_{2}}{P_{1}}) = \frac{\Delta H_{vap}}{2.303R}[\frac{1}{T_{1}} - \frac{1}{T_{2}}

            log(\frac{0.7895}{0.13157}) = \frac{\Delta H_{vap}}{2.303 \times 8.314 J/mol K}[\frac{1}{1357 K} - \frac{1}{1493 K}]

          log (6) = \frac{\Delta H_{vap}}{19.147}[\frac{(1493 - 1357) K}{1493 K \times 1357 K}]

                0.77815 = \frac{\Delta H_{vap}}{19.147J/K mol} \times 6.713 \times 10^{-5} K

              \Delta H_{vap} = 2.219 \times 10^{5} J/mol

                                   = 2.219 \times 10^{5}J/mol \times 10^{-3}\frac{kJ}{1 J}

                                    = 221.9 kJ/mol

Thus, we can conclude that molar heat of vaporization of substance X is 221.9 kJ/mol.

4 0
2 years ago
Which is an example of a physical change?
levacccp [35]

Answer:

salt dissolving

Explanation:

Hope this helps!

8 0
2 years ago
Read 2 more answers
Other questions:
  • 2. Why would a calcium (Ca) atom be larger than a bromine (Br) atom even
    13·1 answer
  • What type of energy transfer is responsible for making you feel cold when you are swimming in cool water? Explain your answer
    6·1 answer
  • Write the correct term: In gaseous substances, the individual molecules are relatively (close/far apart) and are moving freely,
    6·1 answer
  • There are islands in the ocean that grow larger the Hawaiian islands are good examples of this the reason that the islands were
    14·1 answer
  • What is meant by a solute-give an exmple.
    12·1 answer
  • The main active components of bleach and many other household cleaners are
    5·2 answers
  • A substance that undergoes a chemical change is still the same substance after the change
    5·1 answer
  • 13. How many valence electrons does an atom
    15·1 answer
  • How many number of orbitals are in Potassium (K)?<br><br> 1s^2 2s^2 2p^6 3s^2 3p^6 4s^1
    13·1 answer
  • Which statement describes how the angle of insolation affects different areas of Earth?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!