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
Ulleksa [173]
3 years ago
14

Please help. Thank you!

Chemistry
2 answers:
scoray [572]3 years ago
6 0

Answer: Uranium is a chemical element with atomic number 92 which means there are 92 protons and 92 electrons in the atomic structure. The chemical symbol for Uranium is U. Electron configuration of Uranium is [Rn] 5f3 6d1 7s2. Possible oxidation states are +3,4,5,6.

Explanation:

Sedbober [7]3 years ago
5 0

Answer:

Electron configuration of uranium at its ground state: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6s6 5f3 6d1 7s2

Noble gas configuration: [Rn] 5f3 6d1 7s2.

You might be interested in
Is my current answer correct? if not, please correct me​
MAVERICK [17]

Answer:

Yes you’re correct :)

Explanation:

4 0
3 years ago
Read 2 more answers
Which two terms represent types of chemical
maw [93]

3) molecular and structural

Explanation:

Molecular and structural are two terms that represents chemical formula of compounds and molecules.

The molecular formula shows the chemical symbols and the number of atoms combining using subscripts.

The structural formula gives the arrangement of elements in a compound and molecule using a diagrammatic approach.

learn more:

Molecular formula brainly.com/question/6125309

#learnwithBrainly

4 0
3 years ago
Consider the reaction
spayn [35]

Answer:

1- 0.04 M/s.

2- 0.16 M/s.

Explanation:

  • For the reaction: 4PH₃ → P₄ + 6H₂.

<em>The rate of the reaction = - d[PH₃]/4dt = d[P₄]/dt = d[H₂]/6dt.</em>

where, - d[PH₃]/dt is the rate of PH₃ changing "rate of disappearance of PH₃".

d[P₄]/dt is rate of P₄ changing "rate of appearance of P₄".

d[H₂]/dt is the rate of H₂ changing "rate of formation of H₂" (d[H₂]/dt = 0.24 M/s).

<u><em>(a) At what rate is P₄ changing?</em></u>

∵ The rate of the reaction = d[P₄]/dt = d[H₂]/6dt.

∴ <em>rate of P₄ changing = </em>d[P₄]/dt = d[H₂]/6dt = (0.240 M/s)/(6.0) = 0.04 M/s.

<u><em>(b) At what rate is PH</em></u>₃<u><em> changing?</em></u>

∵ The rate of the reaction = - d[PH₃]/4dt = d[H₂]/6dt.

∴ <em>rate of PH</em>₃<em> changing = </em>- d[PH₃]/dt = 4(d[H₂]/6dt) = (4)(0.240 M/s)/(6.0) = 0.16 M/s.

7 0
3 years ago
Read 2 more answers
Why do we learn about Laws and Motion ​
Tomtit [17]

So you don't jump off a cliff thinking you could fly. Laws and Motion are heavily used in jobs and help us understand more about the mechanics of how earth's gravity operates. Imagine in the future where we could manipulate gravity? That's why we learn and study this so much.

8 0
3 years ago
Describe the main difference between the Bohr model of the atom and the Rutherford model.
atroni [7]

Answer:

The main difference between the two models was about the location of the electron in an atom.

Explanation:

<u>Rutherford described that:</u>

  • The electrons were outside of the nucleus.
  • They were equal in number to the "positiveness" of the nucleus.
  • Also, He randomly placed the negative electrons outside the nucleus.

<u>Bohr improved the Rutherford model:</u>

  • Bohr placed the electrons in distinct energy levels.
  • Electrons only exist in fixed orbitals (shells) and not anywhere in between.
  • Each shell has a fixed energy
  • Rutherford explained the nucleus of an atom, while Bohr was more into the electrons and their energy levels.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Ethylene glycol has a density of 1.11g/cm3. What is the mass in grams of 387ml of ethylene glycol?
    8·1 answer
  • 28 Which compound yields H + ions as the only positive ions in an aqueous solution?
    9·1 answer
  • Classify the four reactions that your group analyzed today as being either endothermic or exothermic
    10·1 answer
  • Where is neon found in earth? South America? North America?
    12·1 answer
  • Electricity is the _of charged<br> particles.<br> A.movement<br> B. collection<br> C.build up
    15·1 answer
  • How many grams of O2 are required for the complete reaction of 45.0g of CH4 to form CO2 and H2O?
    9·1 answer
  • What is the total number of electron pairs shared between the carbon atom and one of the oxygen atoms in a carbon dioxide molecu
    6·1 answer
  • Why does a diamond change directly from a solid state to a gaseous state?
    15·2 answers
  • Identify the reaction type shown and describe the clues that were used to identify it. Fe2O3 + 2SiO2 → Fe2Si2O7
    15·1 answer
  • S + 6 HNO3 H2SO4 + 6 NO2 + 2 H2O
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!