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
ehidna [41]
3 years ago
14

What is the key characteristic of an oxidation–reduction reaction?

Chemistry
2 answers:
svp [43]3 years ago
6 0
Electrons are excharged

yawa3891 [41]3 years ago
5 0

The key  characteristic  of oxidation-  reduction   reaction  is electrons   are  exchanged  ( answer  C)

   <u><em>Explanation</em></u>

  • Oxidation-reduction   reaction  is type  of reaction  that involve a transfer  of electrons  between two  species.

Example  of oxidation - reduction  reaction is

  CH4  +2O2 →   CO2  + 2H2O

  from reaction above C  atom  is oxidized  from  oxidation state -4  to 4.

   On the  other hand O atoms   are reduced  from oxidation state of 0 to  2-.  therefore   there is exchange  of electrons  between  C atoms  and O atoms.


.

   

You might be interested in
A catalyst is used in the chemical reaction to break down hydrogen peroxide into water and oxygen. At the end of the reaction, t
Natasha_Volkova [10]
At the end of the reaction, the catalyst is UNCHANGED.
:)
8 0
3 years ago
How many liters of a 0.30M solution are needed to give 2.7 moles of solute? Your answer:
OverLord2011 [107]
You HAVE TO know that molarity (M) tells you the number of moles of a solute per Liters of solution.
M=mol/L
0.3M = 2.7 mol/ Volume
Volume = 2.7 mol/3.0 L
Volume = 0.9 L
8 0
3 years ago
Read 2 more answers
How many formula units are there in 450 g of Na2S04?
Mashutka [201]

Formula units in 450 g of Na_{2} So_{4} is 1.93 × 10²⁴ formula units.

<u>Explanation:</u>

First we have to find the number of moles in the given mass by dividing the mass by its molar mass as,

$\frac{450 g}{142.04 g/mol} =  3.2 moles

Now, we have to multiply the number of moles of Na₂SO₄ by the Avogadro's number, 6.022 × 10²³ formula units/mol, so we will get the number of formula units present in the given mass of the compound.

3.2 mol × 6.022 × 10²³ = 1.93 × 10²⁴ formula units.

So, 1.93 × 10²⁴ formula units is present in 450g of Na₂SO₄.

4 0
3 years ago
Which is the larger quantity 1.0 km or 1.0 mi
Norma-Jean [14]

A mile.

For reference, it's about 1,607 or so meters, and 1km is 1,000.

4 0
2 years ago
Read 2 more answers
What is the molarity (M) of .5 liter of a solution that has 205 g of NaCl dissolved in it?
jeka94

Answer:

<h2>Molarity = 7 mol / L</h2>

Explanation:

Since the mass of NaCl and it's volume has been given we can find the molarity by using the formula

<h3>C =  \frac{m}{M \times v}</h3>

where

C is the molarity

m is the mass

M is the molar mass

v is the volume

From the question

v = 0.5 L

m = 205 g

We must first find the molar mass and then substitute the values into the above formula

M( Na) = 23 , M( Cl) = 35.5

Molar mass of NaCl = 23 + 35.5 =

58.5 g/mol

So the molarity of NaCl is

C =  \frac{205}{0.5  \times 58.5}  \\ C =  \frac{205}{29.25}

C = 7.00854

We have the final answer as

<h3>Molarity = 7 mol / L</h3>

Hope this helps you

8 0
3 years ago
Other questions:
  • You are working in a laboratory, and you are given the task of converting cyclopentene into 1, 5-pentanediol. Your first thought
    9·1 answer
  • What makes a heterogeneous mixture different from a homogeneous mixture? The components are mixed unevenly instead of evenly wit
    6·1 answer
  • What property of a liquid is used when petrol, ( gasoline) is pumped from the tank to the engine of a car? I need answers!!!!
    6·1 answer
  • What are they waiting? or what are their waiting?<br><br>please correct me if I'm wrong​
    6·1 answer
  • Which of the following fractions can be used in the conversion of 1000 mL to the unit m3? 1L/1ML 1CM^3/1ML 1CM^-3/1ML 1M^3/1L
    14·1 answer
  • Question 3. A batch chemical reactor achieves a reduction in
    5·1 answer
  • Which of the following statements is a part of John Dalton’s atomic theory?
    6·1 answer
  • Which is NOT a physical property?
    7·2 answers
  • Which is produced in a synthesis reaction? O a single element O a single compound O a single ion O a single atom​
    7·2 answers
  • WILL GIVE BRANLIEST TO WHOEVER ANSWERS THIS QUESTION&gt;&gt;&gt; How many valence electrons does NaHCo3 have?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!