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
LUCKY_DIMON [66]
3 years ago
7

List the number of atoms for each element in this compound: NH3 Nitrogen: 4, 3, 2 or 1 Hydrogen: 4 3 2, or 1 ??

Chemistry
1 answer:
guapka [62]3 years ago
6 0
<h3>Answer:</h3>

1 Nitrogen atom and 3 Hydrogen atoms

<h3>Explanation:</h3>
  • A molecule is the smallest particle of an element or a compound that has the properties of the element or the compound.
  • Molecules of elements are made up of similar atoms while those of compounds are made up of different atoms from different elements.
  • Compounds are made up of atoms of different elements.
  • For example, NH₃ is made up of one nitrogen atom and three ammonia atoms, water(H₂O) is made up of two hydrogen atoms and one oxygen atom.
You might be interested in
What are the 3 principles of the Kinetic molecular theory?
Sever21 [200]

Answer:

u already know the answer

Explanation:answer

6 0
3 years ago
Read 2 more answers
The moon makes light the same way that the sun does.True or False
lesya [120]

Answer: false

Explanation:

7 0
3 years ago
Free-energy change, ΔG∘, is related to cell potential, E∘, by the equationΔG∘=−nFE∘where n is the number of moles of electrons t
mart [117]

Answer:

a)\Delta G=372490 J

b)\Delta G=-568614 J

Explanation:

a) The reaction:

Mg(s) +Fe^{2+}(aq) \longrightarrow Mg^{2+}(aq) + Fe(s)

The free-energy expression:

\Delta G=-n*F*E

E=E_{red}-E_{ox]

The element wich is reduced is the Fe and the one that oxidates is the Mg:

-0.44V=E_{red}-(-2.37V)=1.93V

The electrons transfered (n) in this reaction are 2, so:

\Delta G=-2mol*96500 C/mol * 1.93 V

\Delta G=-372490 J

b) If you have values of enthalpy and enthropy you can calculate the free-energy by:

\Delta G=\Delta H - T* \Delta S

with T in Kelvin

\Delta G=-675 kJ*\frac{1000J}{kJ} - 298K*-357 J/K

\Delta G=-568614 J

7 0
3 years ago
The atomic number tells us how many __ or __ an element contains.
CaHeK987 [17]
Answer:-
Electrons or Protons

Explanation:-
Atomic number (Z) is defined as:
>>“The total number of protons in the nucleus of an atom is called atomic number”. All atoms of an element have the same number of protons and electrons.
>>“The total number of protons in the nucleus or electrons revolving around the nucleus of an atom”.
Example:
For instance, Hydrogen has the Atomic number(Z) 1.
Helium has the atomic number 2.
Oxygen has the atomic number 8.
| Note | Atomic number is represented by “Z”. And some ppl don’t consider the 2nd definition it’s upto u to do both or the standard one.

5 0
3 years ago
Which statement about caves and polluted groundwater is true? A. Cave rock neutralizes the pollutants in the groundwater. B. Wel
zvonat [6]
Cave rock neutralizes pollutants in groundwater.
3 0
3 years ago
Other questions:
  • Which is a property of an ideal gas?
    5·1 answer
  • A gaseous sample of nitrogen contains 2.41 grams (0.086 mol). What volume does this mixture occupy at 28 °C and 1.05 atm of pres
    8·1 answer
  • When making a guess, you are forming a_______.
    12·2 answers
  • 30.5 g of sodium metal reacts with a solution of excess lithium bromide. How many grams
    10·1 answer
  • What are the units of molar mass?<br> O A. Lig<br> O B. g/mol<br> O c. g/L<br> O D. mol/g
    14·2 answers
  • When the vapor pressure of a liquid is equal to the atmospheric pressure, the liquid
    8·1 answer
  • 2. How are membranes classified according to their permeability?
    8·1 answer
  • A compound has a pH of 1 in solution, where it has completely lonized. The compound is a
    6·1 answer
  • The atomic number of polassium and
    15·1 answer
  • Help me pls I will mark you as brain
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!