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
vovikov84 [41]
3 years ago
11

Iron can be protected from rusting by coating it in a thin layer of zinc in a process called galvanisation.The zinc layer is oxi

dised instead of the iron.Write out word equations for the oxidation reactions of both iron and zinc.
Iron:
Zinc:
Chemistry
1 answer:
lukranit [14]3 years ago
8 0

Answer:

Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron (III) oxide, which we see as rust. Here is the word equation for the reaction: iron + water + oxygen → hydrated iron (III) oxide

In this reaction, zinc atoms each will lose two electrons (oxidation) and become Zn 2+ ions. The two electrons that are released by zinc will be gained by the Cu 2+ ions (reduction). The Cu2+ ions become Cu atoms. Total equation: Zn (s) + CuSO 4 (aq) --> Cu (s) + ZnSO 4 (aq)

Explanation:

You might be interested in
A dead fish has washed up on the beach and is starting to decay. Which compound produces the unpleasant odor from the decaying f
finlep [7]
The correct option in here is the first one: <span>pentane-1,5-diamine. This is also known as cadaverine. This is a common compund that produces that unpleasant odor from the fish. </span>
5 0
3 years ago
Read 2 more answers
Gustave-Gaspard Coriolanus described this type of energy
Paha777 [63]
I believe it’s Chemical energy but please correct me if i’m wrong
8 0
3 years ago
Why must the ph ammonia buffer solution be stored and dispensed in the fume exhaust hood?
Vadim26 [7]

On the other hand ammonia is a very dangerous chemical which has a pungent smell and effect the eyes of the user. Thus it kept always in the fume exhaust hood for storing and dispensing function.  

The  pH of ammonia buffer contains ammonium hydroxide (NH₄OH) and a salt of ammonia with a  strong acid like (HCl) which produces, ammonium chloride (NH₄Cl) mixture. The evaporation rate of ammonia is so high at room temperature thus on opening of the buffer solution the ammonia get evaporated very fast and the concentration of ammonia decreases which affect the pH of the buffer solution.

Thus the reason to put ammonia buffer in fume hood is explained.


7 0
3 years ago
ASAP MULTIPLE CHOICE WILL MARK BRAINLIEST
aniked [119]

b

the color of lines

Explanation:

on the atomic spectrum for an atom

4 0
3 years ago
Read 2 more answers
A gas evolved during the fermentation of alcohol had a volume of 19.4 L at 17 °C and 746 mmHg. How many moles of gas were collec
AlexFokin [52]

Answer:- 0.800 moles of the gas were collected.

Solution:- Volume, temperature and pressure is given for the gas and asks to calculate the moles of the gas.

It is an ideal gas law based problem. Ideal gas law equation is used to solve this. The equation is:

PV=nRT

Since it asks to calculate the moles that is n, so let's rearrange this for n:

n=\frac{PV}{RT}

V = 19.4 L

T = 17 + 273 = 290 K

P = 746 mmHg

we need to convert the pressure from mmHg to atm and for this we divide by 760 since, 1 atm = 760 mmHg

P=746mmHg(\frac{1atm}{760mmHg})

P = 0.982 atm

R = 0.0821\frac{atm.L}{mol.K}

Let's plug in the values in the equation to get the moles.

n=\frac{0.982atm*19.4L}{0.0821\frac{atm.L}{mol.K}*290K}

n = 0.800 moles

So, 0.800 moles of the gas were collected.

4 0
3 years ago
Other questions:
  • According to john dalton, elements consist of tiny particles called __________. Atoms of each element are __________ to each oth
    6·1 answer
  • 9A. A sample of hydrogen at 1.56 atm had it's pressure decreased to 0.73
    11·1 answer
  • A plant that has genes for tallness may not be tall if the plant
    9·1 answer
  • Which Gender Has Better Reflexs
    9·2 answers
  • Julie finds a snail on the sidewalk and wants to know whether or not the snail moves throughout the day. She places a single mar
    10·2 answers
  • Suppose you perform a titration of an unknown weak acid solution. You start with 4.00 mL of the weak acid and find that it takes
    7·1 answer
  • If you can plz help ASAP Read the chemical equation.
    10·1 answer
  • 13.Which shows the order of increasing ionization energy?
    12·1 answer
  • Substance A with a specific heat of 1.25 J/g∙oC and Substance B with a specific heat of 12.5 J/g∙oC. If both were exposed to the
    9·1 answer
  • 8. How much heat, in kilojoules, is needed to produce 1850 grams of ammonia (NH3),
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!