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tino4ka555 [31]
3 years ago
13

Earth's seasons occur due to the tilt of the earth and it's revolution around the sun.

Chemistry
1 answer:
ICE Princess25 [194]3 years ago
7 0

Answer:true

Explanation:Earths tilted axis causes the seasons.

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Nucleotides polymerize via condensation reactions. The reaction forms a new covalent bond—a phosphodiester linkage, or a phospho
Finger [1]

Answer:

The phosphodiester connects the 3′ carbon of one nucleotide to the 5′ carbon of another nucleotide

Explanation:

The phosphodiester bond is a covalent bond where a phosphate group is attached to adjacent C through an ester bond, which is a consequence of a condensation reaction between the two sugar hydroxyl groups and the phosphate group.

The diester bond between phosphoric acid and two sugar molecules in the DNA and RNA skeleton binds two nucleotides forming polymers known as oligonucleotides.

The phosphodiester bond binds a C3` with a C5` in both DNA and RNA

          (base)1-(sugar)-OH + HO-P(O)2-O-(sugar)-(base)2   ------>

------>   (base)1-(sugar)-O-P(O)2-O-(sugar)-(base)2  

During the reaction of two of the hydroxyl groups in phosphoric acid with a hydroxyl group in two other molecules two ester bonds in a phosphodiester group are formed. A condensation reaction in which a water molecule is lost generates each ester bond.

4 0
3 years ago
A reading shows a pressure measurement of 43 in. Hg. What is the equivalent pressure in psi? A. 5.73 psi B. 2223.13 psi C. 26.32
oksian1 [2.3K]
43 inHg = 43 inHg*2.54cm/in = 109.22cmHg * 10 mm/cm = 1092.2 mmHg


14.7 psi = 760 mmHg

1092.2mmHg * 14.7psi / 760 mmHg = 21.13 psi

Answer: option D. 21.13 psi
7 0
4 years ago
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How many molecules are in 9.45 moles of NaNO3?
REY [17]

Answer:

803.199 grams

Explanation:

4 0
3 years ago
Which of the following is a correct Lewis structure?
ololo11 [35]

Answer:

The answer to your question is letter B

Explanation:

a. [: C≡C :]   This option is not correct because Carbon only has 4 valence electrons and carbons in this structure have 5, this structure does not exist.

b. [: N≡N :]  This option is correct because because Nitrogen has 5 valence electrons and this structure shows that number of electrons.

c. No right choice. This option is incorrect because letter B is correct.

8 0
3 years ago
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Butoxors [25]
A. Burning a match because it changes its form
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