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yanalaym [24]
2 years ago
13

Write the electron configuration of the element that has Z = 3 *

Chemistry
1 answer:
Natasha2012 [34]2 years ago
8 0

Answer:

1s²2s^1

Explanation:

Lithium Z = 3

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Which of the following solutions is a good buffer system?A solution that is 0.10 M HCN and 0.10 M NaClA solution that is 0.10 M
patriot [66]

Answer:

A solution that is 0.10 M HCN and 0.10 M LiCN

Explanation:

  • A good buffer system contains a weak acid and its salt or a weak base and its salt.
  • In this case; A solution that is 0.10 M HCN and 0.10 M LiCN, would make a good buffer system.
  • HCN is a weak acid, while LiCN is a salt of the weak acid, that is, CN- conjugate of the acid.
8 0
3 years ago
Please help! This is for a test and I want to have a good grade. Have a great day! :)
elena-s [515]

Answer:

genetic engineering !! :)

Explanation:

also, i love the pfp <3

6 0
3 years ago
Which of the following statements best compares the pH value of H3PO4 and HCl?
wel

Answer:

Option B. Both have a pH less than 7, but H3PO4 has a lower pH than HCl

Explanation:

Those are acid, so the pH would be < 7.

H₃PO₄ is a weak acid with 3 dissociations

HCl is a strong acid.

pH depends on [H]⁺

H₃PO₄  →  3H⁺  +  PO₄⁻³

HCl →  H⁺  +  Cl⁻

If both acid, have the same concentration, [H⁺]H₃PO₄ > [H⁺]HCl, that's why the pH from the phosphoric will be lower.

5 0
3 years ago
What is the formula for copper(1) chlorate?​
raketka [301]

Answer:

CICUO3

Explanation:

copper 1 chlorate is made up of copper ion and a polyatomic ion of chlorine and oxygen

8 0
3 years ago
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Semenov [28]

FORMULA FOR RUST IS FE2O3.XH20

3 0
3 years ago
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