1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mel-nik [20]
3 years ago
13

If DNA were straight it would be

Chemistry
2 answers:
cluponka [151]3 years ago
8 0

Answer:

DNA is twisted because that is the way the bonds cause it to form. Some things are just the way they are because of the way they are made.

Explanation:

Leviafan [203]3 years ago
6 0

Answer:

If DNA were a straight ladder the bases would thus be too far apart to form a stable stack.

DNA is twisted because that is the way the bonds cause it to form. Some things are just the way they are because of the way they are made.

Explanation:

You might be interested in
For the generic equilibrium HA(aq) ⇌ H+(aq) + A−(aq), which of these statements is true? For the generic equilibrium , which of
timama [110]

<u>Answer:</u> The correct statement is if you add the soluble salt KA to a solution of HA that is at equilibrium, the pH would increase.

<u>Explanation:</u>

Common ion effect is defined as the effect which occurs on equilibrium when a common ion (an ion which is already present in the solution) is added to a solution. This effect generally decreases the solubility of a solute.

Equilibrium reaction of HA and KA follows the equation:

HA\rightleftharpoons H^{+}(aq.)+A^{-}(aq.)

KA\rightleftharpoons K^+(aq.)+A^{-}(aq.)

According to Le-Chateliers principle, if there is any change in the variables of the reaction, the equilibrium will shift in the direction in order to minimize the effect.

In the equilibrium reactions, A^- ion is getting increased on the product side, so the equilibrium will shift in the direction to minimize this effect, which is in the direction of HA.

Thus, the addition of KA will shift the equilibrium in the left direction.

Equilibrium constant depends on the temperature of the system. It does not have any effect on any change of pH.

pH is defined as the negative logarithm of hydrogen ions present in the solution

  • If the solution has high hydrogen ion concentration, then the pH will be low.
  • If the solution has low hydrogen ion concentration, then the pH will be high.

As, the equilibrium is shifting in the left direction, that means concentration of H^+ ions are getting decreases. This will increase the pH of the solution.

Hence, the correct statement is if you add the soluble salt KA to a solution of HA that is at equilibrium, the pH would increase.

8 0
3 years ago
Tarnish on copper is the compound CuO. A tarnished copper plate is placed in an aluminum pan of boiling water. When enough salt
oksian1 [2.3K]

Answer:

The standard cell potential is 2.00 V

Explanation:

<u>Step 1:</u> Data given

Cu is cathode because of higher EP

Al3++3e−→Al       E∘=−1.66 V     anode

Cu2++2e−→Cu    E∘=0.340 V    cathode

<u>Step 2:</u> Balance both equations

2*(Al → Al3+-3e−)       E∘=1.66 V    

3*(Cu2++2e−→Cu)    E∘=0.340 V

<u>Step 3:</u> The netto equation

2 Al + 3Cu2+ +6e- → 2Al3+ + 3Cu -6e-

2 Al + 3Cu2+  → 2Al3+ + 3Cu

<u>Step 4:</u> Calculate the standard cell potential

E∘cell = E∘cathode - E∘anode

E∘cell = E∘ Cu2+/Cu - E∘ Al3+/Al

E∘cell =0.340 V - (-1.66) = 2.00 V

The standard cell potential is 2.00 V

4 0
3 years ago
Among these element groups, which is least likely to form ions?
cupoosta [38]

Your answer would be 7A

3 0
3 years ago
What does the atomic number of each atom represent?
saw5 [17]
It's the number of Protons of that atom..
6 0
3 years ago
What purpose does fecl3 serve in the electrophilic aromatic substitution reaction between chlorine and benzene?
maria [59]
The reason does FeCl3 serve in the electrophilic sweet-smelling substitution response amongst chlorine and benzene is that it fills in as a Lewis corrosive impetus by responding with the Cl2 and along these lines actuates it toward assault by benzene's π electrons.
6 0
3 years ago
Other questions:
  • What are conversion factors in chemistry?
    14·1 answer
  • A covalent bond between to atoms results when the atoms
    6·1 answer
  • A(n) ____________________ is a compound that turns litmus blue and is often found in soaps and detergents.
    5·1 answer
  • Solutions of sodium sulfate and silver nitrate are mixed together.
    11·1 answer
  • Imagine that you started from 5.00 grams of BaCl2.2H2O, which is your limiting reactant. If only 70% of BaCl2.2H2O gives the des
    8·1 answer
  • Calculate (a) the number of moles of hydrogen required to react with 0.0969 moles of nitrogen, and (b) the number of moles of am
    14·1 answer
  • Which of the following is not organic?
    9·1 answer
  • A mixture of He, Ne, and N2 gases has a pressure of 0,898 atm. If the pressures of He and Ne are 0.336 atm and 0.106 atm, respec
    11·1 answer
  • Which of these best describes the basis on which new scientific ideas are accepted or rejected?
    9·1 answer
  • What is Double Decomposition Reaction? _ _ _ koi Zinda bacha hai?​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!