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
Leya [2.2K]
3 years ago
13

The chemical equation, Cr + Fe(NO3)2 → Fe + Cr(NO3)3, is an example of which type of reaction?

Chemistry
1 answer:
Angelina_Jolie [31]3 years ago
8 0

Answer:

Redox type

Explanation:

The reaction is:

2Cr +  3Fe(NO₃)₂ → 2Fe + 2Cr(NO₃)₃

2 moles of chromium can react to 3 moles of iron (II) nitrate in order to produce 2 moles of iron and 2 moles of chromium nitrate.

If we see oxidation state, we see that chromium changes from 0 to +3

Iron changed the oxidation state from +2 to 0

Remember that elements at ground state has 0, as oxidation state.

Iron is being reduced while chromium is oxidized. Then, the half reactions are:

Fe²⁺  +  2e⁻ ⇄  Fe    (Reduction)

Cr ⇄ Cr³⁺  +  3e⁻    (Oxidation)

When an element is being  reduced, while another is being oxidized, we are in prescence of a redox reaction.

You might be interested in
When hydrogen chloride (HCI) reacts with ammonia (NH3), ammonium chloride (NH4CI) is
givi [52]

Answer:

AMEN NNNNNNNNNNNNNNNNNNNNNNNN

6 0
3 years ago
Where was silk first discovered find out the answer<br>​
steposvetlana [31]

Answer:

China

Explanation:

The production of silk originates in China in the Neolithic (Yangshao culture, 4th millennium BC). Silk remained confined to China until the Silk Road opened at some point during the later half of the 1st millennium BC.

3 0
3 years ago
HOW DO SCIENTISTS FORECAST SPACE WEATHER AND WHY
Fittoniya [83]
<span>Much like tornado watchers look to the skies for clues that a twister is forming, NASA and university scientists are watching the Sun in an effort to better predict space weather – blasts of particles from the Sun that impact the magnetosphere, the magnetic bubble around the Earth.</span>
8 0
3 years ago
What is used to calculate volts
Nitella [24]
A multiplication formula
4 0
3 years ago
Read 2 more answers
A dose of aspirin of 5.0 mg per kilogram of body weight has been prescribed to reduce the fever of an infant weighing 8.5 pounds
Tanya [424]
<h3><u>Answer</u>;</h3>

19 mg

<h3><u>Explanation</u>;</h3>

dose = 5.0 mg/kg  

weight of infant = 8.5 pounds

Convert 8.5 pounds to kg: 8.5 pounds = 3.86 kg

Therefore;

The dose to give the infant is:  

= (5.0 mg/kg) x (3.86 kg)

= 19.3 mg  

<u>≈ 19 mg</u>

5 0
3 years ago
Read 2 more answers
Other questions:
  • Kwame wants to measure the volume of water contained in a disposable foam coffe. Which should he use? Nanoliters? Milliliters? O
    7·2 answers
  • How many atoms are in 1.00 molecules of he
    13·2 answers
  • A nurse is caring for a client who is receiving chemotherapy and has a platelet count of 30,000/mm3. Which statement by the clie
    11·1 answer
  • The concentration of dye in Solution A is 26.609 M. You have 13 mL of water at your disposal to make the dilutions. The solution
    5·1 answer
  • Is the prime meridian a longitudinal or latitudinal line?
    13·1 answer
  • An athlete can run 4 m/s. How far can she run in 3 minutes?<br>​
    12·1 answer
  • Why has the acidity of the ocean increased over the years?
    12·1 answer
  • 5 The apparatus shown below was set up. Give explanations for the following observations.
    9·1 answer
  • OVER 200 POINTS- THIS QUESTION IS POSTED TWICE ON MY PROFILE FOR 100 POINTS EACH AND IT IS POSTED A COUPLE TIMES FOR 30 POINTS.
    9·1 answer
  • Aqueous hydrobromic acid reacts with solid sodium hydroxide to produce aqueous sodium bromide and liquid water . What is the the
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!