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amm1812
3 years ago
8

?

Chemistry
2 answers:
larisa [96]3 years ago
4 0
DNA forms a double helix; RNA consists of a single strand.
sashaice [31]3 years ago
3 0
I think it's DNA forms a double helix and RNA consists a single strand.
I may be wrong...
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What is combustion in physics
NISA [10]
Combustion is a chemical reaction that occurs between a fuel and an oxidizing agent that produces energy, usually in the form of heat and light.
5 0
3 years ago
A drought is a long period of dryness. If animals fight during a drought, which basic need is most likely limited?
IrinaK [193]
A, water supply sjdnjxnxjsnd
4 0
3 years ago
Read 2 more answers
A Questic
Ivanshal [37]

Answer:

No, it is not feasible because the Gibbs free energy change is positive

Explanation:

∆Hreaction= (-602 KJ/mol) - (-348 KJ/mol) = -254 KJ/mol

∆Sreaction = (42 + 27) J/Kmol - (33 + 44) J/K = -8J/Kmol

From;

∆G = ∆H - T∆S

∆G = 254 × 10^3 J/mol - [340K × (-8 J/Kmol)]

∆G = 2.57 × 10^5 J/mol

Note that when the change in free energy is positive, a reaction is non spontaneous. Only a reaction that has a negative change in free energy is spontaneous.

3 0
3 years ago
Butane<br> methane<br> ethane<br> propane
aleksklad [387]
<h3>Further explanation</h3>

Given

the structure of the alkanes

Required

match the image to the name

Solution

Alkanes are saturated hydrocarbons with all of the carbon bonds being single bonds

General formula:

\large {\boxed {\bold {C_nH_2n + 2}}}

If we look at the picture, we define the black atom as Carbon and the branch is Hydrogen

To determine the name of the alkane, all we have to do is count the number of Carbon atoms

Butane : C₄H₁₀ : 4 C atoms

Methane : CH₄ : 1 C atom

Ethane : C₂H₆ : 2 C atoms

Propane : C₃H₈ : 3 C atoms

7 0
3 years ago
Are all lenses planer?
skelet666 [1.2K]

no all lenses aren't plan

3 0
3 years ago
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