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
mylen [45]
3 years ago
7

When performing a flame test using the method described in the manual, you complete the flame test of KNO3 and find a yellow col

or instead of the expected purple color. Select the potential sources of error. Group of answer choices The nichrome wire is not hot enough. The solution is not concentrated enough. The flame is not optimized. The nichrome wire is dirty. The solution is contaminated. The watch glass is dirty.
Chemistry
1 answer:
jolli1 [7]3 years ago
7 0

Answer:

The nichrome wire is dirty.

The solution is contaminated.

Explanation:

If the nichrome wire is dirty, it may contain sodium contaminants which may be responsible for the yellow flame. The nichrome wire is first inserted into the flame without the sample to check for impurities.

The test solution may also have been contaminated. This leads to the appearance of a colour different from the expected colour of the test cation in the solution.

You might be interested in
Dominic made the table below to organize his notes about mixtures. A 1-column table. The first column labeled properties of mixt
ankoles [38]

Answer:

Exxplanation:

6 0
3 years ago
Read 2 more answers
Please help
lina2011 [118]

Answer:

The warmer, lighter air rises, bringing cooler, heavier air to low altitudes.

Air at higher altitudes doesn't have as much air weighing down on it from above.

Explanation:

In short - air pressure is the result of the cumulative force that air molecules act on objects below them due to Earth's gravity. The higher the altitude, the less air molecules there are to act a force below them, and therefore, there's less air pressure at higher altitudes.

7 0
2 years ago
Read 2 more answers
Which describes an covalent bond?
Ilya [14]

Answer:

is there choices you have to pick from

Explanation:

or do you have to describe a covalent bond ?

8 0
3 years ago
Read 2 more answers
since butane is not found on the periodic table,how could you find the molar mass of butane(mass of one mole of butane molecules
Wittaler [7]

We know, It's atomic formula = C4H10

Now, we know molar mass of C = 12 & H=1

so, it would be: 12*4+1*10 = 48+10 = 58

3 0
3 years ago
Read 2 more answers
Sodium explosive metal chlorine is ominous gas you would expect a compound made of sodium and chlorine to be
Oksana_A [137]
The answer is common table salt. Looking at the chemical make up, putting an acid (I think chlorine) and and base (probably sodium) makes water (H20) and salt. So you answer would be salt
8 0
3 years ago
Other questions:
  • Energy is needed to break bonds in chemical reactions
    13·1 answer
  • Which expression represents this word phrase?
    15·2 answers
  • An individual unit of copper in the previous question is a(n) __________.
    10·1 answer
  • What type of bond is formed between sodium and iodine in sodium iodide (NaI)? A. ionic B. metallic C. polar covalent D. nonpolar
    8·1 answer
  • How many energy levels does an atom of beryllium have?​
    7·1 answer
  • Which is not a strong electrolyte
    13·2 answers
  • Why is combustion an important reaction in the atmosphere?
    5·2 answers
  • What happens to iron oxide during decomposition
    12·1 answer
  • What happens when oppositely charged ions get close together?
    14·2 answers
  • ano po gagawin ko dahil na delete po ng kapatid ko ang brainly ko ambitous na po ang rank ko noon mababalik ko pa ba ang rank ko
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!