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
sveticcg [70]
3 years ago
13

When is electrolysis used to extract metal?

Chemistry
1 answer:
KatRina [158]3 years ago
7 0

Answer:

Explanation:

electrolysis is the technique that use direct current to drive a non spontaneous chemical reaction chemical reaction is the gain or lose of electron this technique is use to extract metal from theirs ores

You might be interested in
Why does every sample of water have the same boiling point?
Tamiku [17]

Answer:

beacuse water is same every where because it is the combination of h2 +o2 h2o which doesn't change while it is different

Explanation:

ok

8 0
3 years ago
The Hanunoo people of the Philippines have 92 words for rice, Arabs have 250 words for camel, and people in English-speaking cou
docker41 [41]

Answer:

The correct approach will be the "Linguistic-relativity hypothesis".

Explanation:

  • This theory can be defined as either the Hypothesis of Sapir-Whorf. This theory proposes whether our cognitive capabilities are influenced by languages as well as decide how we start behaving and communicate throughout society.  
  • Sapir Whorf explains these variations throughout the nature of human language throughout the manner a person understands the world.
3 0
3 years ago
Which of these is an example of a physical change?
Luda [366]
The answer is D) wood decaying
4 0
3 years ago
Read 2 more answers
3. Discuss the difference between molarity and molality, state the units of each, state the symbol for each, and give an example
dangina [55]

<span>Molality(m) or molal concentration is a measure of concentration and it refers to amount of substance in a specified amount of mass of the solvent. Used unit for molality is mol/kg which is also sometimes denoted as 1 molal. It is equal to the moles of solute (the substance being dissolved) divided by the kilograms of solvent (the substance used to dissolve).</span>

Molarity(M) or molar concentration is also a measure of concentration and represents the amount of substance per unit volume of solution(number of moles per litre of solution. Used unit for molarity is mol/L or M. A solution with a concentration of 1 mol/L is equivalent to 1 molar (1 M).

Molality is preferred when the temperature of the solution varies, because it does not depend on temperature, (neither number of moles of solute nor mass of solvent will be affected by changes of temperature), while molarity changes as temperature changes(volume of solution changes as temperature changes).


4 0
3 years ago
Need a bit of help with this. Fill in the coefficients, explain your answer.
sp2606 [1]

Answer:

4Fe + 3O₂ → 2Fe₂O₃

General Formulas and Concepts:

<u>Chemistry - Reactions</u>

  • Balancing Reactions

Explanation:

<u>Step 1: Define</u>

RxN:   Fe + O₂ → Fe₂O₃

<u>Step 2: Balance</u>

We need to balance both Fe and O.

LCM of 2 and 3 is 6:

Fe + 3O₂ → 2Fe₂O₃

We now need the same amount of Fe on both sides:

4Fe + 3O₂ → 2Fe₂O₃

4 0
3 years ago
Other questions:
  • How many grams of magnesium contain 4.80 x 10^25 atoms of magnesium
    9·1 answer
  • i want to make a presentation on mixtures Clearly describes the process through illustrations or other visuals. Describe termino
    6·1 answer
  • Find the ΔG° for the combustion of half a mole of glucose C6H12O6 in kJ
    14·1 answer
  • The properties of a compound ____________________ those of its elements.
    10·1 answer
  • A sample that contains only SrCO3 and BaCO3 weighs 0.800 g. When it is dissolved in excess acid, 0.211 g car- bon dioxide is lib
    9·1 answer
  • Choose the aqueous solution that has the highest boiling point. These are all solutions of nonvolatile solutes and you should as
    8·1 answer
  • Identity each of the following catalysts as
    11·2 answers
  • Add the polynomials (7x^3-2x^2-12)+(3x^3-8x^2+10x)
    9·1 answer
  • What is the relationship between thermal energy, kinetic energy and the transition between the three states of matter
    7·1 answer
  • How many moles of electrons are transferred when 2.0 moles of aluminum metal react with excess copper(II) nitrate in aqueous sol
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!