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Vikentia [17]
3 years ago
6

Choose the weakest acid?. 1. H2Se, H2O, H2Te, or H2S. 2. H2SeO4, H2SeO3, H2SO3, or H2SO4. 3. HClO3, H2Se, HBr, HNO4

Chemistry
1 answer:
kap26 [50]3 years ago
8 0
The weakest acid in each sequence is;

A.H2Te
B.H2SeO4
C.<span>H2Se </span>
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What is the correct formula for sodium carbonate?
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Answer:

na2 co3

Explanation:

sodium carbonate formula

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2 years ago
Contrast the silica content of magma in quiet and explosive eruptions
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3 years ago
Read the following chemical equation: Ti + 2Cl2 → TiCl4 Which statement best identifies and describes the reducing agent in the
goldenfox [79]

Answer: Ti is the reducing agent because it changes from 0 to +4 oxidation state.

Explanation:

  • Firstly, we need to identify the reducing agent and the oxidizing agent.
  • The reducing agent: is the agent that has been oxidized via losing electrons.
  • The oxidizing agent: is the agent that has been reduced via gaining electrons.
  • Here, Ti losses 4 electrons and its oxidation state is changed from 0 to +4 and Cl₂  gains one electron  and its oxidation state is changed from 0 to -1.
  • So, Ti is the reducing agent because its oxidation state changes from  0 to +4.
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4 0
3 years ago
You would expect a phosphorous-chlorine bond to be
zlopas [31]

Answer: option 4. polar, with the chlorine end having a partial negative charge.


Explanation:


1) A polar bond is a covalent bond in which the electrons are pulled more strongly by one of the atoms and then they are not evely distributed between the two linked atoms.


2) That happens when the two atoms have diferent electronegativities.


3) As the per periodic table trend of the electronegativity, you can predict that the electronetativity of Cl is higher than that of P.


In fact, in a table of electronegativities you can find that the electronegativity of Cl is 3.16 while the electronegativity of P is 2.19.


This is a 3.16 - 2.19 = 0.97 difference.


As explained, that difference means that Cl will pull the electrons more strongly resulting if a partial negative charge on Cl and a partial positive charge on P, i.e. a polar bond.

4 0
3 years ago
Read 2 more answers
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