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
wel
3 years ago
13

Please help y’all I don’t understand

Chemistry
2 answers:
mixas84 [53]3 years ago
4 0
Answer: c
When following the octet rule the valence electrons try to lose outside electron to become more stable
faltersainse [42]3 years ago
3 0

Answer:

the third one

Explanation:

You might be interested in
A student heats 10.52 g of sodium hydrogen carbonate in a crucible until the compound completely decomposes to sodium carbonate
saveliy_v [14]

Answer:

m_{Na_2CO_3}^{theoretical}=6.636gNa_2CO_3

Explanation:

Hello!

In this case, since the decomposition of sodium hydrogen carbonate is:

2NaHCO_3(s)\rightarrow Na_2CO_3(s)+H_2O(g)+CO_2(g)

Thus, since there is a 2:1 mole ratio between the sodium hydrogen carbonate and sodium carbonate, and the molar masses are 84.01 and 105.99 g/mol respectively, we obtain the following theoretical yield:

m_{Na_2CO_3}^{theoretical}=10.52gNaHCO_3*\frac{1molNaHCO_3}{84.01gNaHCO_3}*\frac{1molNa_2CO_3}{2molNaHCO_3}  *\frac{105.99gNa_2CO_3}{1molNa_2CO_3}\\\\ m_{Na_2CO_3}^{theoretical}=6.636gNa_2CO_3

Best regards!

4 0
2 years ago
What are some of the activities performed during experiment​
aev [14]

Answer:

nobmelonisegxfixcyctGkchkcigdtidtifyoc

6 0
2 years ago
Read 2 more answers
A square block of steel with volume 10 cm3 and mass of 75 g is cut precisely in half. The density of the two smaller pieces is n
Temka [501]
It will be the exact same density
6 0
3 years ago
Read 2 more answers
How many atoms are there in 4.13 moles of nickel (Ni)
Rudik [331]

Answer:

2.48626 x 10^24

Explanation:

We multiple 4.13 by avogadro's number to get that.

6 0
3 years ago
Provide the quantum numbers for each electron in the element gadolinium
Basile [38]
Atomic # 64
electronic configuration is *[Xe] 6s^2 4f^8
n = 4
ℓ = 3
mℓ<span> = -3</span>
ms<span> = -½</span>
7 0
2 years ago
Other questions:
  • A reporter wants to investigate the reasons for the high levels of air pollution in a locality. Initial research reveals two pos
    7·1 answer
  • How are a substance and a solution similar? how are they different?
    12·1 answer
  • For a hydrogen atom, which electronic transition would result in the emission of a photon with the highest energy?
    11·1 answer
  • Choose the products that complete the reaction. The chemical equation may not be balanced.
    14·2 answers
  • What cellular activities could thiG be a start of?
    11·1 answer
  • 1. Determinati masa moleculara, raportul atomic si raportul de masa pentru oxidul de aluminiu 2. Determinati compozutia procebtu
    5·1 answer
  • Encountering problems during separation/purification is a very common issue in organic synthesis, but these steps are crucial to
    8·1 answer
  • Plz!!!!Plz!!!!!help help
    6·1 answer
  • Which energy changes would take place when a water is heated using a Bunsen burner?
    11·1 answer
  • Which impact is the greatest negative of a new hydroelectric dam?.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!