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zzz [600]
3 years ago
10

Why flame tests are not useful for all elements?

Chemistry
2 answers:
Sav [38]3 years ago
8 0

Answer: Not all elements give out flame colors

Explanation:

The flame test has limitations such as

The test cannot detect low concentrations of most ions. The brightness of the signal varies from one sample to another. For example, the yellow emission from sodium is much brighter than the red emission from the same amount of lithium. Impurities or contaminants affect the test results

What is flame test?

A flame test is an analytical procedure used in chemistry to detect the presence of certain elements, primarily metal ions, based on each element's characteristic emission spectrum. The color of flames in general also depends on temperature

Shalnov [3]3 years ago
3 0
<span>Not all elements have strong visible spectra in a flame</span>
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Answer:

The answer is B

Explanation:

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3 years ago
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The subshell letter:a) specifies the 3-D shape of the orbital.b) specifies the principal shell of the orbital.c) specifies the p
Dafna11 [192]

Answer:

a) specifies the 3-D shape of the orbital

Explanation:

To determine the region where is more probable to find the electron, it is characterized by four quantum numbers:

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-Azimuthal quantum number (l): represents the sublevel, or subshell. Is represented by the letters s, p, d, f, g, ... And by the numbers 0, 1, 2, 3, ... Each one has a 3-D shape, the s, for example, has a spherical shape.

-Magnetic quantum number (ml): represents the orbital inside the subshell, and varies from -l to +l, passing by the 0. Each orbital can have at least 2 electrons.

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3 0
3 years ago
match these items. three-dimensional bonding, hardest natural substance, used as lubricant, nonconductor, weak planar bonds, car
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sorry im late, hopefully this can help somebody :)

4 0
2 years ago
How many moles of ethane (C2H6) would be needed to react with 62.3 grams of oxygen gas?
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So you need the atomic mass of oxygen gas

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now look at the ratio of C2H6 and O2, notice there is an invisible number beside each of them, at that "invisible number" is =1

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Thus as we have 1.95 moles of O2, we need 1.95 moles of C2H6
5 0
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Which order is correct in listing the bond lengths from shortest to longest? A. single, double, triple B. triple, double, single
Alex787 [66]
A I believe would be the answer
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