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9966 [12]
3 years ago
5

What is an enzyme and how does it affect a chemical reaction?

Chemistry
1 answer:
zheka24 [161]3 years ago
4 0

Answer:

Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.

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There are ________ σ bonds and ________ π bonds in h3c-ch2-ch=ch-ch2-c≡ch.
FrozenT [24]
The number of sigma and pi bonds are,

          Sigma Bonds  =  16

          Pi Bonds         =   3

Explanation:
                   Every first bond formed between two atoms is sigma. Pi bond is formed when already a sigma bond is there. While in case of Alkyne (triple Bond) there is one sigma and one pi bond already present, so the third bond is formed by second side-to-side overlap of orbitals, hence, a second pi bond is formed.
Below all black bonds are sigma bonds, while in alkene there is one pi bond and in alkyne there are two pi bonds.

6 0
3 years ago
George operates a fishery. Last month, he noticed that the number of fish had decreased. Which discipline can provide valuable i
Solnce55 [7]

Answer:

Fisheries science. This discipline aims to study and understand fisheries biology, food web, the predator-prey relationship, stock status information, as well as the socioeconomic status of fishermen (commercial and substantial)

Explanation:

The information from this discipline will help environmental scientists understand why there is a decrease in fish in the ocean. The reasons can vary from over fishing to decline in the reproduction of fishes due to climate change.

8 0
3 years ago
Read 2 more answers
What volume of 3.00 M CH3COOH solution is needed to provide 0.220 mol of CH3COOH?
harkovskaia [24]

0.0733L of 3.00 M CH3COOH solution is needed to provide 0.220 mol of CH3COOH.

<u>Explanation</u>:

Molarity, M = moles of the molecule / Liter of solution

Therefore, we can work backwards to find the number of litres of solution, if we are given the number of moles

The values are a given as,

The molarity of the solution =3.00M

The final moles = 0.220 moles.

 0.220 mol CH3COOH ( 1L / 3.00 mol CH3COOH) = 0.220/3.00                          

                                                                                     =0.0733L of solution

5 0
4 years ago
Hydrochloric acid is found in swimming pools and in your stomach.How does it function in each situation?
DochEvi [55]
HCL in swimming pools helps kill the bacteria in them from other people while HCL in your stomach helps dissolve the food you eat
6 0
4 years ago
The constant diameter of the double helix is ensured because hydrogen bonding is always between a(n)
vlada-n [284]

We can confirm that the diameter of the double helix structure of DNA stays the same because hydrogen bonding is always between the A and T bases and the G and C bases.

<h3>What are these bases in DNA?</h3>

The AGCT bases in DNA are the nucleotides that comprise it. These nucleotides include

  • Adenine
  • Cytosine
  • Guanine
  • Thymine

By always bonding adenines with thymine and Guanine with cytosines, the DNA strand maintains a constant diameter.

Therefore, we can confirm that the diameter of the double helix structure of DNA stays the same because hydrogen bonding is always between the A and T bases and the G and C bases.

To learn more about DNA visit:

brainly.com/question/264225?referrer=searchResults

7 0
3 years ago
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