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
PilotLPTM [1.2K]
3 years ago
9

How many spirals does a DNA molecule have?

Chemistry
2 answers:
ella [17]3 years ago
8 0

Answer:

two

Explanation:

2

alekssr [168]3 years ago
8 0

Answer:

two

Explanation:

nucleic acids are made up of chains of many repeating units called nucleotides. the dna molecule consists of two such chains that spiral around an imaginary axis to form a double helix (spiral.)

hope this helps :)

have a nice day !!

You might be interested in
Question 3 of 10
KATRIN_1 [288]

Answer:A

Explanation:

5 0
3 years ago
In which situation is an object accelerating?
Nady [450]
I would say D, because the object's speed moves up, therefore accelerating. 
3 0
4 years ago
If 200. g of water at 20°C absorbs 41 840 J of energy, what will its final temperature be? (Specific Heat of water is 4.184 J/g*
Elena-2011 [213]

Answer: The final temperature will be 70^0C

Explanation:

To calculate the specific heat of substance during the reaction.

q=m\times c\times (T_{final}-T_{initial})

where,

q = heat absorbed =41840 J

c = specific heat = 4.184J/g^0C

m = mass of water  = 200 g

T_{final} = final temperature =?

T_{initial}= initial temperature = 20^0C

Now put all the given values in the above formula, we get:

41840J=200g\times 4.184J/g^0C\times (T_{final}-20)^0C

T_{final}=70^0C

Thus the final temperature will be 70^0C

3 0
3 years ago
Which group or groups of atoms are the only atoms with f orbitals A. All atoms heavier than barium B. All atoms heavier than kry
Mashcka [7]

Answer:

All atoms heavier than barium

Explanation:

In the periodic table, elements are divided into blocks. We have the;

s- block elements

p- block elements

d- block elements

f- block elements

However, immediately after Barium, we now encounter elements that have f-orbitals. Barium possesses a fully filled d-orbital. Hence after it, we see elements with 4f and 5f orbitals called the Lanthanides and actinides. The elements following the lanthanide and actinide series possess completely filled f-orbitals as inner orbitals.

Hence elements heavier than barium all possess f-orbitals.

6 0
4 years ago
The diagram below shows different layers of sedimentary rocks.
Flura [38]
<span>Picture showing seven layers of rocks of different colors labeled A, B, C, D, E, F, and G from top to bottom;
A and B are parallel horizontal layers at the top of the diagram;
C, D, E, F, and G are slanted layers with C closest to the surface and G at the bottom.
</span>
The inference that is most likely correct is that (<span>C) Layer F is younger than Layer D.</span>
8 0
3 years ago
Read 2 more answers
Other questions:
  • Rainwater will enter the ground at x if the ground is a) saturated and permeable
    6·1 answer
  • What is the effect of water on rock melting?
    8·1 answer
  • For a science experiment Marcia dissolved 1.0 kilogram of salt in 3.0 liters of water. For a different experiment, Bobby dissolv
    14·1 answer
  • - Which theory was the natural beginning of a Big Bang theory?
    9·1 answer
  • Determine the element of lowest atomic number that contains a half-filled d subshell in the ground state?
    15·2 answers
  • A sample of hydrogen gas at a pressure of 0.926 atm and a temperature of 29.5 C, occupies a volume of 457 mL. If the gas is allo
    12·1 answer
  • Pls help what the ratio ?.<br>enter your answer as an integer ​
    7·1 answer
  • 17. Physical properties of a material include all but ________________.
    6·1 answer
  • If 5.00 g of pure Na2CO3 is treated with HCL solution, how many grams of NaCl will be produced if the water is subsequently evap
    15·1 answer
  • A GIRL WAIKS 10M NORTH,15M EAST AND THEN FINALLY 20MSOUTH FIND HER DISPLACEMENT​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!