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Natalka [10]
3 years ago
11

Which is a characteristic of aromatic hydrocarbons?

Chemistry
2 answers:
Dominik [7]3 years ago
8 0
B. they are cyclic
i looked up the characteristics and it said aromatic hydrocarbons have cyclic molecules
Leokris [45]3 years ago
4 0
Answer b they are cyclic
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Which pair of atoms have the most polar bond
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H-Cl pair of atoms has the most polar bond.

7 0
3 years ago
If the frequency of a wave is small the wavelength would be _____, and the energy would be______.
nignag [31]

Answer:

A or B

Explanation:

because the more times that the waves pass a certain distance in a certain time the smaller the wave will be. so the more waves that fit in it the shorter the wavelength.

6 0
4 years ago
Which shows an isomer of the molecule below?
babunello [35]
Above question is incomplete. Complete question is attached below
.......................................................................................................................

Correct Answer: Option D i.e. CH3CH2CH2CH2CH3

Reason:
Isomers are the compounds having same molecular formula, but different structural formula.

The molecular formula of the compound is C5H12

The compound present is question (i.e. 2-methyl butane) and option D (n-pentane) has same molecular formula. Hence, they are isomers.

However, compound present in option A, is the same compound provided in question. Hence, it is not an isomer. Compounds reported in option B and C has one carbon atom less and more, respectively as compared to the compound reported in question. Hence, they are also not isomers. 

5 0
3 years ago
What is the second most abundant element in stars? A. helium B. iron C. hydrogen D. oxygen
devlian [24]
<span>The </span>abundance of a chemical element<span> is a measure of the </span>occurrence<span> of the </span>element<span> relative to all other elements in a given environment. Abundance is measured in one of three ways: by the </span>mass-fraction<span> (the same as weight fraction); by the </span>mole-fraction<span> (fraction of atoms by numerical count, or sometimes fraction of molecules in gases); or by the </span>volume-fraction<span>. Volume-fraction is a common abundance measure in mixed gases such as planetary atmospheres, and is similar in value to molecular mole-fraction for gas mixtures at relatively low densities and pressures, and </span>ideal gas<span> mixtures. Most abundance values in this article are given as mass-fractions.

</span>
8 0
3 years ago
Which has a higher melting point, NaBr or KBr
Blababa [14]
NaBr melting point : 1,377°F (774C)
KBr: 1,353°F (734C)
7 0
3 years ago
Read 2 more answers
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