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Stels [109]
3 years ago
11

Write the empirical formula for given elements

Chemistry
1 answer:
rusak2 [61]3 years ago
3 0

Answer:

Fe(CN)_{2}\\Fe(C_{2}H_{3}O_{2})_{2}\\\\Fe(CN)_{3}\\\\Fe(C_{2}H_{3}O_{2})_{3}

Explanation:

Fe^{2+}(CN^{-})_{2}--->Fe(CN)_{2}\\Fe^{2+}(C_{2}H_{3}O_{2}^{-})_{2}--->Fe(C_{2}H_{3}O_{2})_{2}\\\\Fe^{3+}(CN^{-})_{3}--->Fe(CN)_{3}\\\\Fe^{3+}(C_{2}H_{3}O_{2}^{-})_{3}--->Fe(C_{2}H_{3}O_{2})_{3}

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zysi [14]

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3 0
3 years ago
Read 2 more answers
Need help asap!
Scilla [17]

Answer: 1.  C. polar covalent: electrons shared between silicon and sulfur but attracted more to the sulfur

2. B)  NH_3

3. B) Fluorine

Explanation:

1. A polar covalent bond is defined as the bond which is formed when there is a difference of electronegativities between the atoms.

Electronegativity difference = electronegativity of sulphur- electronegativity of silicon = 2.5 -1.8 = 0.7

Thus as electronegativity difference is less than 1.7 , the cond is polar covalent and as electronegativity of sulphur is more , the electrons will be more towards sulphur.

2. A molecular compound is usually composed of two or more nonmetal elements. Example: NH_3

Ionic compound is formed by the transfer of electrons from metals to non metals. Example: Mg_3N_2 , AlCl_3 and LiBr

3.  For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.

Here K is having an oxidation state of +1 and as the compound formed is KZ, the oxidation state of non metallic element Z should be -1. Thus the element Z is flourine which exists as diatomic gas F_2

4 0
3 years ago
In the Reaction CuCl2 + 2 NaNO3 —> Cu(NO3)2 + 2 Naci
Lunna [17]

Explanation:

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5 0
3 years ago
Why the ph of glycine increases when 0.1 M NaOH is added dropwise​
shtirl [24]

Answer:

The acid-base reaction produces glycine reduction, and hence the increase of glycine pH.

Explanation:

The glycine is an amino acid with the following chemical formula:

NH₂CH₂COOH  

The COOH functional group is what gives the acid properties in the molecule.      

Hence, when NaOH is added to glycine an acid-base reaction takes place in which COOH reacts with the NaOH added:

NH₂CH₂COOH + OH⁻ ⇄ NH₂CH₂COO⁻ + H₂O

The glycine concentration starts to shift to its ion form (NH₂CH₂COO⁻) because of the reaction with NaOH, that is why the pH glycine increases when NaOH is added.  

Therefore, the acid-base reaction produces glycine reduction, and hence the increase of glycine pH.  

I hope it helps you!  

7 0
3 years ago
Use the drop-down menus to answer the questions. Which type of radioactive decay produces particles with a positive charge and v
Alexus [3.1K]

Answer:

beta, gamma, gamma

Explanation:

I just guessed and got the answers ur welcome 2020 team work.

8 0
3 years ago
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