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
ycow [4]
3 years ago
12

Which substance is used to remove rust from metal

Chemistry
2 answers:
Anvisha [2.4K]3 years ago
7 0
<span>hydrochloric acid (HCl)</span>
wel3 years ago
3 0
<span>Chemically speaking, rust is a base and any acid will remove it. The choice of acid is going to be the thing to consider, since acid + base = salt and water. Phosphoric acid left a residue because the salt Iron phosphate is insoluble in water. Iron's soluble salts include the chloride, the sulfate and the nitrate. Industrially speaking, you need to "pickle" your iron. Pickling is a process in which dilute sulfuric acid is used to remove any surface corrosion prior to either painting or plating an iron surface. Sulfuric acid is ordinary battery acid and the salt Iron sulfate is not toxic. Sulfuric acid is one of the most common acids used (besides hydrochloric acid). The dilute kind is not terribly corrosive but concentrated sulfuric acid is a thick, syrupy liquid which can cause some nasty chemical burns if allowed to remain on the skin. It also heats up quite a lot when water is added, so this is an "Acid to water not water to acid" situation. The other choice is Hydrochloric acid, known as muriatic acid. The 20% concentrate is available in nearly any hardware store. It isn't as corrosive as concentrated sulfuric acid, but it has a burning, acrid stench, so never use the concentrate without adequate ventilation. It is ordinarily used to remove hard water deposits (boiler scale) but does a good on on rust as well. Concentrated Iron chloride isn't entirely inert but lots of rinsing will turn it back into harmless rust/sludge, especially if the rince water is naturally hard. Nitric acid will remove corrosion from anything, but it is extremely corrosive, smells worse then Hydrochloric acid and isn't easy to get, since it can be used to create some powerful explosives</span>
You might be interested in
Explain why the product at the negative electrode is not always a metal.
Elena-2011 [213]

Answer:

Whether you get the metal or hydrogen during electrolysis depends on the position of the metal in the reactivity series: the metal will be produced if it is less reactive than hydrogen. hydrogen will be produced if the metal is more reactive than hydrogen.

3 0
3 years ago
Why does solid change to liquid when heat is added
Sophie [7]
Because that solid is frozen liquid, so when it gets heated up, it will melt. Like Ice.

Hope I Helped! :)
4 0
3 years ago
Which atom has only one pair of electrons in its outermost energy level?
inysia [295]

Answer:

i belive A, i cold be wrong tho, pls tell me if im right if you fully find out

ght. Explanation:

8 0
3 years ago
Textbook mass 2000 grams volume 4000cm3 density
PIT_PIT [208]
Density = mass/volume = 2000/4000 = 0.5 grams/cm3. Hope this hopes!
8 0
3 years ago
What is the total number of moles of H2SO4 needed to prepare 5.0 liters of a 2.0 M solution of H2SO4
forsale [732]
The molarity of H2SO4 is the number of moles in 1 L of solution.
The molarity is 2.0 mol/L
This means that there should be 2 moles in a 1 L solution to make up this molarity.
In this case we need to make up a 5 L solutions with that molarity. Then the amount of moles required are - 2 mol/L x 5 L = 10 mol
3 0
3 years ago
Read 2 more answers
Other questions:
  • If 0.45 mols of MnO2 can react with 0.28 moles of HCl, how many moles of Cl2 could be produced
    10·1 answer
  • You are using a new type of metal to make electrical wires. What element would you consider using to do this ? *
    12·2 answers
  • What is the relationship between a problem statement and the hypothesis?
    11·1 answer
  • What are 3 phases of matter how do particles move
    10·2 answers
  • Starting with the unbalanced equation for the combustion of ethanol, C2H5OH(l)+O2(g)→CO2(g)+?H2O(l) what coefficient should be p
    5·1 answer
  • A scientist analyzes four samples of compounds. He finds the first compound contains 10 grams of sodium, 211 grams of potassium,
    9·1 answer
  • Various properties of a liquid are recorded during an experiment. the volume of the liquid is measured to be 25.5 milliliters. t
    7·2 answers
  • How many moles of Boron (B) are in 5.03 x 1024 B atoms?
    13·1 answer
  • Spiral galaxies have a central core from which curved arms spiral outward. True False
    9·2 answers
  • Plzzzzzzzzzzzzzzzz help
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!