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
kupik [55]
3 years ago
5

The atomic number and the mass number of 18 and 40. Write the information conveyed by this statement.​

Chemistry
1 answer:
VashaNatasha [74]3 years ago
8 0
There are 18 protons and electrons and 22 neutrons in the atom
You might be interested in
Which of these is always equal to the molar mass of any element?
-Dominant- [34]
I think it would be A
6 0
3 years ago
Read 2 more answers
Friends can __________.
inn [45]
D) All of the above ..
4 0
3 years ago
Read 2 more answers
An electrode has a potential of 1.201 V with respect to a saturated silver-silver chloride electrode. What would the electrodes
fredd [130]

Answer:

The potential wrt. calomel is 1.254 V

Explanation:

Given:

Potential wrt. silver chloride E_{Ag}  = 1.201 V

Potential wrt. saturated silver chloride E = 0.197 V

Potential wrt. SCE E_{Hg} = 0.241 V

Now potential wrt. hydrogen is given by,

   = 1.201- 0.197

   = 1.004 V

And we find for potential wrt. calomel,

   = potential wrt. hydrogen + potential wrt. SEC

   = 1.004 +0.241

   = 1.254 V

Therefore, the potential wrt. calomel is 1.254 V

7 0
3 years ago
Consider the hypothetical reaction 3A + 4B → C + 2D Over an interval of 2.50 s the average rate of change of the concentration o
faust18 [17]

Answer:

Final [B] = 1.665 M

Explanation:

3A + 4B → C + 2D

Average rection rate = 3[A]/Δt = 4[B]/Δt = [C]/Δt = 2[D]/Δt

0.05600 M/s = 4 [B]/ 2.50 s

[B] = 0.035 M (concentration of B consumed)

Final [B] = initial [B] - consumed [B]

Final [B] = 1.700 M - 0.035 M

Final [B] = 1.665 M

3 0
3 years ago
What type of solid is candle wax ? Amorphous or Crystalline?
ExtremeBDS [4]
<span>It is amorphous because it gets softer and softer, and it doesn't melt at a distinct temperature.

</span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • Which important change in electronic devices, such as televisions and computers, is a result of the use of metalloids as semicon
    10·2 answers
  • Which phrase best describes the path of a light wave ?
    15·1 answer
  • What is the empirical formula for C 57.66
    12·1 answer
  • What is the balanced equation for solid ammonium nitrate (NH4NO3) decomposes explosively to form nitrogen gas, oxygen gas, and w
    12·1 answer
  • Water, H2O, has a higher boiling point than methane, CH4.<br><br> TRUE<br><br> FALSE
    11·1 answer
  • The label on a tub of margarine states that 100 g of the margarine contains 0·70 g of sodium. The sodium is present as sodium ch
    14·1 answer
  • Rewrite this measurement with a simpler unit, if possible.<br> 4.5·m2m2m
    5·1 answer
  • Hich of the following best describes a person doing science?
    13·2 answers
  • Help please! in the photo!!! ​
    7·1 answer
  • The amount of gram - atoms in two gramm of sulfur is (NB: S=32amu)​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!