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seraphim [82]
3 years ago
6

From each of the following pairs of substances, use data in Appendix E in the textbook to choose the one that is the stronger ox

idizing agent.Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer.1. Given HO2- (aq) or O3 (g), the stronger oxidizing agent is _____.2. Given Cl2 (g) or I2 (s), the stronger oxidizing agent is _____.3. Given Zn^2+ (aq) or Co^2+ (aq), the stronger oxidizing agent is _____.4. Given Br2 (l) or BrO3- (aq), the stronger oxidizing agent is _____.WORD BOX:Zn^2+ (aq)O3 (g)I2 (s)HO2- (aq)Cl2 (g)Br2 (l)Co^2+ (aq)BrO3- (aq)
Chemistry
1 answer:
dem82 [27]3 years ago
6 0

Answer:

O3 is stronger oxidizing agent than  HO2-.

Cl2 is stronger oxidizing agent than I2.

Zn^2+ is stronger oxidizing agent than Co^2+.

Br2 is stronger oxidizing agent than BrO3-.

Explanation:

An oxidizing agent oxidizes other compound by undergoing reduction itself.

Gaining of electron or hydrogen is reduction.

1. O3 is stronger oxidizing agent than  HO2-. Because O3 readily gets decomposed into O2 and nascent (O), which oxidizes other compound. whereas as HO2- sometimes gets reduced to H2O2 and sometimes gets oxidized to O2.

2. Cl2 is stronger oxidizing agent than I2, as Cl2 can easily gain electrons compared to I2 due to its small atomic size.

3. Zn^2+ is stronger oxidizing agent than Co^2+, because Zn^2+ readily gains electrons compared toCo^2+ to form stable Zn due to its small atomic size.

4. Br2 is stronger oxidizing agent than BrO3-, as Br2 can accept electrons due to readily available empty orbitals compared to BrO3-.

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What is the energy of light with a wavelength of 468 nm? (The speed of light
marshall27 [118]

The answer for the problem is explained below.

The option for the answer is "D".

<u><em>Therefore the energy of the light is  4.25 × 10^-19 J</em></u>

Explanation:

Given:

wavelength (λ) = 468 nm = 468×10^-9 m

speed of light (c) = 3.00 x 10^8m/s

Planck's constant is 6.626 x 10^-34J·s

To solve:

energy of light (E)

We know,

E =(h×c) ÷ λ

E = ( 6.626 x 10^-34 ×  3.00 x 10^8) ÷ 468×10^-9

E = 4.25 × 10^-19 J

<u><em>Therefore the energy of the light is  4.25 × 10^-19 J</em></u>

6 0
2 years ago
Pb(CH3COO)2 + H2S --&gt; PbS + CH3COOH 1. How many moles are produced of PbS when 5.00 grams of Pb(CH3COO)2 is reacted with H2S?
shutvik [7]

Answer:

1. 0.0154mole of PbS

2. Double displacement reaction

Explanation:

First, let write a balanced equation for the reaction. This is illustrated below:

Pb(CH3COO)2 + H2S —> PbS + 2 CH3COOH

Molar Mass of Pb(CH3COO)2 = 207 + 2(12 + 3 + 12 + 16 +16) = 207 + 2(59) = 207 + 118 = 325g

Mass of Pb(CH3COO)2 = 5g

Number of mole = Mass /Molar Mass

Number of mole of Pb(CH3COO)2 = 5/325 = 0.0154mole

From the equation,

1mole of Pb(CH3COO)2 produced 1mole of PbS.

Therefore, 0.0154mole of Pb(CH3COO)2 will also produce 0.0154mole of PbS

2. The name of the reaction is double displacement reaction since the ions in the two reactants interchange to form two different products

5 0
3 years ago
41 to
tia_tia [17]

Answer:

d = 0.9 g/L

Explanation:

Given data:

Number of moles = 1 mol

Volume = 24.2 L

Temperature = 298 K

Pressure = 101.3 Kpa (101.3/101 = 1 atm)

Density of sample = ?

Solution:

PV = nRT     (1)

n = number of moles

number of moles = mass/molar mass

n = m/M

Now we will put the n= m/M in equation 1.

PV = m/M RT   (2)

d = m/v

PM = m/v RT ( by rearranging the equation 2)

PM = dRT

d = PM/RT

The molar mass of neon is = 20.1798 g/mol

d = 1 atm × 20.1798 g/mol / 0.0821 atm. L/mol.K × 273K

d = 20.1798 g/22.413 L

d = 0.9 g/L

4 0
3 years ago
Why ph changes disrupt protein's ionic bonds?
Inessa05 [86]

Answer:

A change in pH in the protein habitat can modify its ionic bonds because because the chemical equilibrium shifts to one side or the other depends on the modification

Explanation:

The pH influences the charge acquired by the acidic and basic groups present in the molecules. Proteins usually have groups with characteristics of acid or weak base. Therefore, they are partially ionized in solution coexisting in equilibrium different species.

The degree of ionization of the different functional groups is in relation to the pH of the medium in which they are found, since the H3O + and OH- species are part of the equilibrium situation. Therefore, according to the pH, each group with characteristics of weak acid or base present in the molecule will be ionized to a lesser or greater extent. There are extreme situations where the balance has been totally displaced in one direction, for example: under very high pH conditions (low concentration of H3O +) weak acids are considered fully ionized, so the functional group will always have an electric charge. The same goes for the bases at very low pH values. In other equilibrium situations, species of the same molecule with different load will coexist in the solution, due to the pH value of the medium in which it is found.

8 0
3 years ago
Why are we pulled to the center of the Earth and not into the much larger sun?
katrin [286]

Answer:

The sun's gravity pulls on the earth, and the earth pulls back on the sun at the same time. This is why the center of the solar system is not the center of the sun. As one gravitational body gets bigger than the other, it circles closer to the center of the system (shown in red).

Explanation:

hope this helps...

8 0
2 years ago
Read 2 more answers
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