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UkoKoshka [18]
2 years ago
7

Help quick! Will mark brainlest!

Chemistry
1 answer:
Ivenika [448]2 years ago
6 0

Answer: 10HSiCl3 + 15H2O → H10Si10O15 + 30HCl

Explanation:

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Stels [109]

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5 0
2 years ago
Why are valence electrons important?
Usimov [2.4K]
They are the outer layer of the electron layers.
5 0
3 years ago
Read 2 more answers
30.0 ml of an hf solution were titrated with 22.15 ml of a 0.122 m koh solution to reach the equivalence point. what is the mola
a_sh-v [17]
Answer is: molarity of hydrofluoric solution is 0.09 M.

Chemical reaction: HF(aq) + KOH(aq) → KF(aq) + H₂O(l).
V(HF) = 30.0 mL.
c(KOH) = 0.122 M.
V(KOH) = 22.15 mL:
c(HF) = ?.
From chemical reaction: n(HF) : n(KOH) = 1 : 1.
n(HF) = n(KOH).
c(HF) · V(HF) = c(KOH) · V(KOH).
c(HF) = c(KOH) · V(KOH) ÷ V(HF).
c(HF) = 0.122 M · 22.15 mL ÷ 30 mL:
c(HF) = 0.09 M.
8 0
3 years ago
Read 2 more answers
25 pts
lubasha [3.4K]

Answer:

2 circles one proton and one nucleon.draw quarks within each. strong nuclear force within protons between quarks and residual strong force between proton and nucleon (up,up,down in proton)

Explanation:

6 0
2 years ago
Which formula represents a molecular compound?<br> (1) Kr (3) N2O4<br> (2) LiOH (4) NaI
weeeeeb [17]
N2O4 is the only option from the list that represents a molecular compound, since compounds must contain at least two different atoms, although these can be from different groups. 
5 0
3 years ago
Read 2 more answers
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