1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
andrew-mc [135]
3 years ago
15

Consider the process in which HClO3 is converted to HClO2. The oxidation state of oxygen remains −2, and the oxidation state of

H remains +1. Select the correct statement. 1. Cl is reduced and gains electrons. 2. Cl is reduced and loses electrons. 3. Cl is oxidized and gains electrons. 4. Cl is oxidized and loses electrons
Chemistry
1 answer:
mixas84 [53]3 years ago
8 0

Answer:

Option 1, Cl is reduced and gains electrons

Explanation:

HClO₃  → HClO₂

In HClO₃, chlorine acts with +5 in the oxidation state

In HClO₂,, chlorine acts with +3 in the oxidation state.

The state has been reducted, so the Cl has been reduced. As it was reduced, it means that has won e⁻, in this case 2

Cl⁻⁵  → Cl⁻³  +  2e⁻

You might be interested in
you have 150.0 ml of a 0.807 m solution of ce(no₃)₄. what mass (in grams) of ce(no₃)₄ would be required to make the solution?
Hitman42 [59]

The mass of Ce(NO3)₄ that will be needed to create the solution was 24.16 g (in grams).

<h3>What exactly is the solution?</h3>

A homogenous mixture with one or even more solutes that have been dissolved in the solvent is known as a solution. The material that a solute dissolves in to create a homogenous mixture is known as a solvent. To create a homogenous mixture, a component must dissolve in a solvent.

<h3>What is an illustration of a solution?</h3>

One nanometer or smaller particles are referred to as a solution in a homogeneous mixture made up of two or more components. There are many different types of solutions, including sugar and salt solutions and fizzy water. Each component shows up as a different phase in a solution.

<h3>Briefing:</h3>

Mole of Ce(NO₃)₄ = 0.06225 mole

Molar of Ce(NO₃)₄ = 140.12 + 4[14 + (16×3)]

= 140.12 + 4[14 + 48]

= 140.12 + 4[62]

= 140.12 + 248

= 388.12 g/mol

Mass of Ce(NO₃)₄ = 0.06225 × 388.12

Mass of Ce(NO₃)₄ = 24.16 g

To know more about solution visit:

brainly.com/question/1616939

#SPJ4

4 0
1 year ago
The volume of a gas at 27.0c and 0.200atm is 80.0 ml .what volume will the same gas sample occupy at STP?
FrozenT [24]

Answer:

V₂ = 14.56 mL.

Explanation:

  • We can use the general law of ideal gas: PV = nRT.

where, P is the pressure of the gas in atm.

V is the volume of the gas in L.

n is the no. of moles of the gas in mol.

R  is the general gas constant,

T is the temperature of the gas in K.

  • If n is constant, and have different values of P, V and T:

<em>(P₁*V₁) / T₁ = (P₂ * V₂) / T₂</em>

<em />

  • Knowing that:  

V₁  =  80.0 mL, P₁ = 0.20 atm, T₁ = 27  °C + 273 = 300 K.

V₂  =  ??? mL, P₂ (STP) = 1.0 atm, T₂ (STP) = 0 °C + 273  =  273 K.

Applying in the above equation

(P ₁* V₁) / T₁ = (P₂ * V₂) / T₂

(0.20 atm * 80.0 mL) / 300 K= (1.0 atm  * V₂) / 273 K

V₂ = (0.20 atm * 80.0 mL * 273 K) / (300 K * 1.0 atm)

V₂ = 14.56 mL

<em>So, the answer is: V₂ = 14.56 mL.</em>

7 0
2 years ago
Science Grade 8
FinnZ [79.3K]
Sound waves are produced by air flow coming from our lungs passing through our throat, more specifically our larynx and moving with two folds of tissue called vocal chords. The sound is made by the vibration of vocal chords, so the more stretched the chords are over the larynx, their frequency of vibration is higher, therefore producing higher-pitched sounds.
4 0
2 years ago
If oil spills continue, all of the following should be expected except (2 points)
Ilia_Sergeevich [38]

Answer:

Polluted ground water.

Explanation:

The rocks through which water flows into the ground sieves most of the contaminants whose molecules are larger than most bacteria. Such molecules include but are not limited oil molecules. Therefore as it descends to the lower levels of the soil profile, water is subjected to continuous filtration by the layers and it is the least susceptible to contamination by oil spills.

4 0
3 years ago
Read 2 more answers
The rock cycle allows for an igneous rock to turn into what type of rock
zhuklara [117]

Answer:

metamorphic rock

Igneous rock can change into sedimentary rock or into metamorphic rock.

Explanation:

6 0
2 years ago
Other questions:
  • Question 2 Unsaved Which of the following chemical formulas shows a covalent compound? a)CO2 b)MgO c)NaCl d)HBr
    5·2 answers
  • how many moles of potassium hydroxide are needed to completely react with 1.73 miles of aluminum sulfate according to the follow
    10·2 answers
  • What are the conjugate base and conjugate acid for HSO4−? What is the term used to describe species that can behave as either an
    6·1 answer
  • What is the name of the the following formula Cd(HOOCCOO)2
    14·1 answer
  • Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. An industrial ch
    10·1 answer
  • How many liters of fluorine gas, at standard temperature and pressure, will react with 23.5 grams of potassium metal? Show all o
    7·1 answer
  • A gas sample occupies 200 mL at 760 mm Hg. What volume does the gas occupy at 400 mm Hg?
    13·1 answer
  • How many moles of oxygen are required to react completely with 5 mol C8H18?
    11·1 answer
  • Explain why Cl2 can form two different Na bonds
    11·1 answer
  • A sample of gas with a volume of 30.0 ml at 25.0c is heated to 50.0c what is the new volume of the gas
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!