B) H₂
Explanation:
Only H₂ is a non-polar covalent molecule among the given options. A non-polar covalent bond forms between homonuclear atoms that are chemically bonded.
- In the formation of covalent bonds, each atom shares the valence electrons in their outer energy shells to be able to mimic the noble gases.
- In homonuclear molecules, the two bonding atoms are of the same kind and the electronegativity difference is zero.
- The covalent bond between them is a called a non-polar covalent bond.
- Here there is equal sharing of the electron pair between the pair of atoms and there is no electrostatic charge on the molecule.
Learn more:
chemical bonds brainly.com/question/10903097
carbon bonds brainly.com/question/10901976
bond types brainly.com/question/11730855
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Answer:
The two enzymes that are used during DNA replication is helicase and polymerase. Each enzyme has distinct role that made it a vital part of the replication. In the course of DNA replication, the initial stage is to unzip the double helix structure of the DNA molecule by the enzyme helicase, which breaks the hydrogen bonds that holds the complementary bases of DNA.
Moreover, the DNA polymerase has the ability to exactly copy a DNA template. This enzyme binds to the leading strand and then adding a new complementary nucleotide bases to the DNA strand. In addition, it catalyzes the joining of deoxyribonucleoside 5′-triphosphates (dNTPs) to form the increasing DNA chain.
Explanation:
Answer:
C) [PCl5] = 0.0280 M, [PCl3] = 0.222 M, [Cl2] = 0.222 M
Explanation:
Moles of [PCl₅] = 0.250 M
Considering the ICE table for the equilibrium as:
PCl₅ (g) ⇔ PCl₃ (g) + Cl₂ (g)
t = o 0.250
t = eq -x x x
---------------------------------------------
--------------------------
Moles at eq: 0.250-x x x
The expression for the equilibrium constant is:
So,
x = 0.222 M
Equilibrium concentrations :
[PCl₃] = [Cl₂] = 0.222 M
[PCl₅] = 0.250 - 0.222 = 0.280 M
<u>Option C is correct.</u>
Answer:
20 pretzels.
Explanation:
So in the first bag there at 64 pretzels in 16-ounces.
We can divide both these numbers by 16, to get 4 pretzels per ounce.
If we multiply both numbers by 5, we get 20 pretzels per ounces.
So, 20 pretzels i5-ounce bag.