Consider the following oxidation-reduction reaction: 2fe3+(aq) + 2hg(l) + 2cl−(aq) → 2fe2+(aq) + hg2cl2(s). indicate the oxidizing agent and the reducing agent.

Answers

Answer 1

Answer:

The reducing agent is Hg (mercury) and the oxidixing agent is Cl (chlorine)

Explanation:

first find the oxidation charges of each of the different ions. All elements that are alone have a charge of 0. As you compare the reactants and products we can see that the chargers of Hg and Cl have changed.

Hg went from a charge of 0 to a charge of +1

Cl went from a charge of 0 to a charge of -1

remember when a substance gains electrons it is reducing and when a substance is losing electrons it is oxidizing.

use the acryonm

OIL

Oxidizing Is Losing

RIG

Reducing Is Gaining

Related Questions

What is the ph of a solution of h2so4 that has [h3o ] = 5.45 × 10–5 m?

Answers

The pH of a solution of sulphuric acid that has hydronium ion concentration is 4.26.

How do we calculate pH?

pH of any solution is define as the negative logarithm of the concentration of H⁺ ion present in any solution, i.e.

pH = -log[H⁺]

In the question, it is given that:

Concentration of hydronium ion or H⁺ ion = 5.45×10⁻⁵ M

So, pH will be:
pH = -log(5.45×10⁻⁵)

pH = -(-4.26)

pH = 4.26

Hence required pH is 4.26.

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_____AI(NO3)3 + _____NaOH —> ___Al(OH)3
+ _____NaNO3

Answers

Answer:

Al(NO3)3 + 3NaOH -----> Al(OH)3 + 3NaNO3

3. Which of the following sentences apply to neutrons? a. have a negative charge. b. circle around the atom nucleus. c. are the only particles that form the nucleus. d. have a mass of 1 amu. SA 2

Answers

Answer:

d.have a mass of 1 amu..

Explanation:

Does not match a as the answer for a is electrons B.electron circle around the nucleus because neutrons are inside the nucleus.C.proton and neutrons make the nucleus so the only answer left is .d .which is correct

Answer:c are the only are the only particle that form the nucleus

Explanation:

Barium nitrate Ba (NO3)2 is used to produce a green colour in fireworks. It is the product of Barium Hydroxide with HNO3. Propose its balanced chemical equation

Answers

The balanced chemical equation for the reaction between barium hydroxide, Ba(OH)₂ and HNO₃ to produce barium nitrate, Ba(NO₃)₂ is

Ba(OH)₂ + 2HNO₃ —> Ba(NO₃)₂ + 2H₂O

What is a chemical equation?

Chemical equations are representations of chemical reactions using symbols and formula of the reactants and products.

The reactants are located on the left side while the products are located on the right side.

Reactants —> Products

The balancing of chemical equations follows the law of conservation of matter which states that matter can neither be created nor destroyed during a chemical reaction but can be transferred from one form to another.

How to write the balanced equation

Ba(OH)₂ + HNO₃ —> Ba(NO₃)₂ + H₂O

There are 2 atoms of N on the right side and 1 atom on the left side. It can be balanced by writing 2 before HNO₃ as shown below:

Ba(OH)₂ + 2HNO₃ —> Ba(NO₃)₂ + H₂O

There are 4 atoms of H on the left side and 2 atoms on the right side. It can be balanced by writing 2 before H₂O as shown below

Ba(OH)₂ + 2HNO₃ —> Ba(NO₃)₂ + 2H₂O

Now, the equation is balanced

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Fill in the missing values in the chart below please. If you can please show your work.

Answers

The volume and temperature changes in according to Charles' law will be:

T2 = 363 °CT1 = 869 KV1 = 5.35 LV2 = 144.6 mL

What is the relationship between volume and temperature of a given mass of gas?

The relationship between the volume and temperature of a given mass of gas is given by Charles' Iaw which states that volume is directly proportional to temperature if a gas in Kelvin.

[tex]Mathematically, V_1/T_1 = V_2T_2[/tex]

To complete the tables volume and temperature changes:

T2 = 3.5 × (273 +45)/1.75 = 636 K = 363 °CT1 = 35 × 298/12 = 869 KV1 = 250 × 7.6/355 = 5.35 LV2 = 150 × (273 + 24)/(273 + 35) = 144.6 mL

Therefore, volume and temperature are directly proportional.

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If a zero order reaction has a rate constant k of 0.0416Mmin and an initial concentration of 2.29 M, what will be its concentration after 20.0 minutes

Answers

Answer:

1.46 M

Explanation:

[A]t=−(0.0416 M/min) x (20.0 min)+2.29 M

[A]t=1.46 M

62. Write formulas for the following substances and
designate their physical states.
a. nitrogen dioxide gas
b. liquid gallium
c. barium chloride dissolved in water
d. solid ammonium carbonate

Answers

A. NO2(g)
B. GA (I)
C. BaCI2 (aq)
D. (NH4) 2CO3 (s)

The formulas for the substances and designate their physical states as follows:

a. nitrogen dioxide gas NO₂(g)

b. liquid gallium GA (I)

c. barium chloride dissolved in water BaCI₂ (aq)

d. solid ammonium carbonate (NH₄) 2CO₃ (s)

What is chemical formula ?

The term chemical formula is defined as an expression that presents the elements in a compound and the relative proportions of those elements.

If only one atom of a particular type is present, no subscript is used. For atoms that have two or more of a particular type of atom present, a subscript is written after the symbol for that atom.

It presents the constituent element and the number of atoms of each element present in one molecule of the compound. It also corresponds to the molecular mass of the compound.

Thus, The formula of nitrogen dioxide gas is NO₂(g).

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