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
Maurinko [17]
2 years ago
9

How much is the oxygen valency?

Chemistry
1 answer:
Marina CMI [18]2 years ago
4 0
The oxygen valency is 2
You might be interested in
Please help! Don’t know if I’m right!!
kompoz [17]

Answer:e

Explanation:

Bananas

4 0
3 years ago
im found only in plant cells im as green as can be i make food for the plant using the suns energy what am i?
Cloud [144]

im found only in plant cells im as green as can be i make food for the plant using the suns energy what am i?

ANS:-Chloroplast

7 0
3 years ago
Read 2 more answers
Consider a cobalt-silver voltaic cell that is constructed such that one half-cell consists of the cobalt, Co, electrode immersed
umka21 [38]

Answer:

Anode half reaction;

Co(s) ----> Co^2+(aq) + 2e

Cathode half reaction;

2Ag^+(aq) + 2e-------> 2Ag(s)

Explanation:

A voltaic cell is an electrochemical cell that spontaneously produces electrical energy from chemical reactions. A voltaic cell comprises of an anode (where oxidation occurs) and a cathode (where reduction occurs). The both electrodes are connected with a wire . A salt bridge ensures charge neutrality in the anode and cathode compartments. Electrons flow from anode to cathode.

For the cell referred to in the question;

Anode half reaction;

Co(s) ----> Co^2+(aq) + 2e

Cathode half reaction;

2Ag^+(aq) + 2e-------> 2Ag(s)

3 0
3 years ago
Solid potassium chlorate (kclo3) decomposes into potassium chloride and oxygen gas when heated. how many moles of oxygen form wh
IrinaVladis [17]

Answer:

  • <u>0.665 mol of O₂.</u>

Explanation:

<u>1. Molecular chemical equation:</u>

  • 2 KClO₃(s) → 2 KCl(s) + 3 O₂(g)

<u>2. Mole ratios:</u>

  • 2 mol KClO₃ : 2 mol KCl : 3 mol O₂

<u>3. Number of moles of KClO₃</u>

  • Number of moles = mass in grams / molar mass

  • Molar mass of KClO₃ = 122.55 g/mol

  • Number of moles of KClO₃ = 54.3 g / 122.5 g/mol ≈ 0.44308 mol

<u>3. Number of moles of O₂</u>

As per the theoretical mole ratio 2 mol of KClO₃ produce 3 mol of O₂, then set up a proportion to determine how many  moles of O₂ will be produced from 0.44038 mol of KClO₃.

  • 3 mol O₂ / 2 mol KClO₃ = x / 0.44038 mol KClO₃

  • x = (3 / 2) × 0.44308 mol O₂ = 0.6646 mol O₂

Round to 3 significant figures: 0.665 mol of O₂ ← answer

3 0
3 years ago
Read 2 more answers
Can you please help me it’s not a hard question
aliya0001 [1]
The answer for acceleration is m/s^2
5 0
2 years ago
Other questions:
  • Shoe companies imbed unique designs on the bottoms of the sneakers they manufacture. What is the main purpose of the designs on
    6·1 answer
  • Determine the enthalpy change for the reaction 2C(s) + 2H2O(g) → CH4(g) + CO2(g) using the following:
    14·2 answers
  • How does warm water at the surface of the ocean<br> become colder?
    11·1 answer
  • Espresso Coffee House is designing a coffee mug that keeps liquids hot. The research department tested several different materia
    12·1 answer
  • Which sediment type requires the least amount of energy to be eroded
    12·1 answer
  • Which substance in the<br> reaction is the acid?<br> HCI<br> KOH<br> KCI<br> H20
    8·1 answer
  • The intensity of a sound wave increases as the wave spreads out from the source of the sound
    15·1 answer
  • What happens after coral is bleached?
    9·1 answer
  • Speed.
    15·1 answer
  • Which group of the periodic table is composed of inert gases
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!