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
otez555 [7]
2 years ago
10

Why do we use acid during the detection of halogens​

Chemistry
1 answer:
ohaa [14]2 years ago
8 0

Answer:

Nitric acid decomposes sodium cyanide and sodium halide. else, they precipitate in test and misguide the result. Therefore, dilute nitric acid is added before testing halogens to expel all the gases if evolved.

You might be interested in
You have an unknownthat contains only one cation (it is oneof the twelve from this experiment).Your solution is colorless and od
algol [13]

Answer:

Your cation is Pb2+

Explanation:

This is the explanation by chemical reactions

HCl (l) ----> H+(aq)  +  Cl-(aq)

Pb2+(aq)  +  2Cl-(aq)  --->  PbCl2 (s) ↓

H2SO4 (l) ----> 2H+ (aq)  +  SO4-2(aq)

Pb2+(aq)  +  SO4-2(aq) ---> PbSO4 (s) ↓

NaOH (l) ---> Na+(aq) + OH-(aq)

Pb2+(aq)  +  2OH-(aq) ---> Pb(OH)2 (s) ↓

If the reaction takes place in a strong alkaline medium, lead hydroxide dissolves in excess of base

5 0
3 years ago
H<br> I<br> 1<br> "<br> C=C<br> 1<br> I<br> H<br> What is the IUPAC name
geniusboy [140]
Charlidamelio is overrated
3 0
3 years ago
Pleeaase!!!! this is due by midnight and I’m SOOOOOOO confused
Savatey [412]
Meteor is the flash of light caused rock debris we see from space.
Meteoroid is the debris.
Meteorite is the debris that lands on earth.
6 0
4 years ago
How do you make these equations balanced?
Sedaia [141]

Explanation:

both iron and sulphur in FeS2 undergo a change in oxidation state.

O2° -->2O degree2- Total decrease = 2×2=4

So, 4FeS2+11O2 --> 2Fe2O3+8 SO2

Hence, balanced

3 0
3 years ago
Identify your unknowns and use your experimental evidence to support your identification
Masteriza [31]
<span>During an experiment, given that other elements that make up the compound are identified, an unknown element x can easily make separate if certain properties of that unknown element is exhibited in the experiment. So, the first thing to do would be to identify the compound, identify and isolate all the knowns and one can test to see the properties which the unknown element is giving and make a reasonable deduction from that.For example if we were testing for the presence of water in Copper(II) sulfate . if water is in the sample that we were testing for, we will see that the sample will turn blue because of the presence of water</span>
3 0
3 years ago
Other questions:
  • The number of molecules in one mole of lithium acetate are...
    6·1 answer
  • Acetylene torches are used for welding. These torches use a mixture of acetylene gas, C2H2, and oxygen gas, O2 to produce the fo
    14·1 answer
  • For a particular experiment, Maria must heat
    6·2 answers
  • How is volume calculated given mass and density? (4 points)
    6·2 answers
  • 1. Calculate the molarity when 403 g MgSO4 is dissolved to make a 5.25 L solution. Round to two significant digits.
    10·1 answer
  • What are the parts of an atom, and how are they used to determine an atom’s mass and identity?
    7·1 answer
  • How many grams in 3.4 moles of Neon (Ne)?
    12·1 answer
  • 1. A cupcake show makes and delivers specialized cupcakes. It will cost someone $30 for
    7·1 answer
  • What is T in the equation G = H - TS?
    14·1 answer
  • A. Choose one of the four biogeochemical cycles that were discussed in this unit - carbon, nitrogen, water, or oxygen and descri
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!