3 years ago

What does an emission spectrum look like?

Chemistry

2 answers:

aniked [119]3 years ago

8 0

Answer:

It should be B

ohaa [14]3 years ago

4 0

Answer:

The answer is It is a set of lines corresponding to photon emission wavelengths.

Explanation:

I just did it on A pex and this is correct. Maybe there is a question with similar wording that is making other people get the answer wrong so make sure that your question says "What does an emission spectrum look like" and then your answer will be A.

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Carbohydrates are made up of carbon, hydrogen, and __________.

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Oxegan ........
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Calculate the number of moles of C2H6 in 6.29×1023 molecules of C2H6.

Kipish [7]

1.05moles

Explanation:

Given parameters:

Number of molecules of C₂H₆ = 6.29 x 10²³molecules

Unknown:

Number of moles = ?

Solution:

The mole is the amount of substances that contains Avogadro's number of particles i.e 6.02 x 10²³

To find the number of moles:

number of moles = $\frac{number of particles}{Avogadro's number}$

number of moles = $\frac{6.29 x 10^{23} }{6.02 x 10^{23} }$

number of moles = 1.05moles

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moles brainly.com/question/1841136

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3 years ago

Why is gold considered matter?

Yakvenalex [24]

Answer:

All matter is made up of substances called elements, which have specific chemical and physical properties and can't be broken down into other substances through ordinary chemical reactions. Gold, in this case, is an element so, therefore, it is considered matter.

Hope it helped :)

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Three factors that affect the solubility of a substance are pressure, the type of solvent, and volume.

liraira [26]

Answer true

Explanation:

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Using stoichiometry, determine the mass of powdered drink mix needed to make 1.0 M solution of 100 mL

Rzqust [24]

Answer:

34.23 g.

M = (no. of moles of solute)/(V of the solution (L)).

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