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adoni [48]
2 years ago
5

Atomic emission spectra are unique to each element. true false

Chemistry
2 answers:
11111nata11111 [884]2 years ago
8 0
True, bc each element emits lights that have an unique wavelength and frequency
WARRIOR [948]2 years ago
3 0

Answer:

true

Explanation:

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Briefly describe the solvation of sodium chloride to form aqueous solution.
charle [14.2K]

Answer:

idk

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3 years ago
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How many unique 13C NMR signals exist in the spectrum for the following compound?
yawa3891 [41]

Answer:

                   Five signals exist in the spectrum of 4-methylpent-1-ene.

Explanation:

                   Nuclear Magnetic Resonance (NMR) is the main technique used by Scientists particularly by Chemists to elucidate the structure of compounds mainly organic compounds.

                   There are different NMR techniques which are used to characterize different NMR active nuclei like ¹H-NMR, ¹³C-NMR, ¹⁵N-NMR, ¹⁹F-NMR e.t.c.

                   In given case the compound will show five different signal for six carbon atoms. THis is because among the six carbon atoms two of them have same electronic environment means they are having same electron surrounding thus, they will share a signal at same ppm. Hence, the signals and each signal shown by each carbon atom is shown below.

6 0
3 years ago
Why is carbon good for forming the structure of life?
Leni [432]
First things first carbon is quite common element here in Earth. But it is not all, right? Otherwise we would be built from other, more common elements. The thing is in carbon reactiveness. Also energy needed to create carbon chemical compounds isnt that big when compared to etc nitrogen. It can bind up to 4 different elements (atoms). Thanks to this can givesingle, both and triple bindings! Carbon can give away electrons or take them making his degree of oxidation consequently from -IV to +IV. All this vareity leads to vareity of bigger elements that will be created from carbon later- carbohydrates, proteins etc. As life needs vareity to adapt to different situations and climax only carbon therefore can provide this.
6 0
2 years ago
Design your own experiment: Factors that affect the rate of a reaction
hoa [83]

Answer:

Reactant concentration, the physical states of the reactants, surface area, temperature and the presence of catalyst.

4 0
3 years ago
Dissolving 16 g of urea (MW= 60 g/mol) in 39 g of water produces 42.3 ml of solution. Determine the molarity of this solution
Genrish500 [490]

Hey there!:

Molar mass urea = 60 g/mol

Number of moles of solute:

moles solute = mass solute / molar mass

moles solute = 16 / 60

moles solute => 0.2666 moles of urea

Volume in liters:

42.3 mL / 1000 => 0.0423 L

Therefore:

Molarity = moles of solute / volume of solution

Molarity = 0.2666 / 0.0423

= 6.302 M


Hope that helps!

8 0
3 years ago
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