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kati45 [8]
2 years ago
12

Which of the following explains the importance of the activation energy acting as a barrier for reactants? A:It prevents most re

actions from occurring spontaneously. B:It ensures the activated complexes remain stable. C:It allows energy to be released slowly from products. D: It stops the activated complexes from ever forming.
Chemistry
2 answers:
natita [175]2 years ago
7 0
A: It prevents most reactions from occurring spontaneously.

The answer above is correct.
IgorLugansk [536]2 years ago
3 0

Answer: Option (A) is the correct answer.

Explanation:

Activation energy is the minimum amount of energy required to carry out a chemical reaction.

So, when reactant molecules does not have the minimum amount of energy then they are not able to participate in a chemical reaction. Hence, the reaction does not take place.

Therefore, a catalyst acts as an initiator in this situation to carry out the reaction.

Thus, we can conclude that the importance of the activation energy acting as a barrier for reactants as it prevents most reactions from occurring spontaneously.

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The amount of oxygen bound to hemoglobin _____.
Luba_88 [7]
The amount of oxygen bound to hemoglobin is 98.5% 
7 0
3 years ago
Read 2 more answers
Help in my exam plzz now​
swat32

Answer:

yes your answer is correct

I hope it helps mate

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8 0
3 years ago
A student designs an experiment to see the effects exposing a block of ice to sunlight over time. The students makes a hypothesi
jeka94

In this experiment, the experimental group is ice, the independent variable is sunlight while on the other hand, the dependent variable is block of ice.

<h3>What are dependent and independent variables?</h3>

Dependent variable is a type of variable in which a variable whose value depends on another variable while on the other hand, independent variable is a type of variable in which a variable whose value does not depends on another variable. Dependent variable is denoted by X whereas the independent variable is denoted by Y.

So we can conclude that In this experiment, the experimental group is ice, the independent variable is sunlight while on the other hand, the dependent variable is block of ice.

Learn more about variable here: brainly.com/question/25223322

#SPJ1

8 0
2 years ago
Which of the following is most likely to form multiple (double or triple) bonds? 1. Li 2. Cl 3. N 4. H 5. F
alukav5142 [94]

Answer: Option (3) is the correct answer.

Explanation:

Atomic number of lithium is 3 and its electronic distribution is 2, 1. So, to attain stability it will loose an electron and hence, it forms a single bond.

Atomic number of chlorine is 17 and it has 7 valence electrons. Hence, in order to attain stability it will gain one electron and therefore, it forms a single bond only.

Atomic number of nitrogen is 7 and its electronic distribution is 2, 5. Therefore, to attain stability it needs to gain 3 more electrons. Hence, a nitrogen atom is able to form a triple bond and also it is able to form a double bond.

Hydrogen has atomic number 1 and it attains stability by gaining one electron. Therefore, a hydrogen atoms always forms a single bond.

Atomic number of fluorine is 9 and its electronic distribution is 2, 7. To complete its octet it needs to gain one electron. Hence, a fluorine atom always forms a single bond.

Thus, we can conclude that out of the given options nitrogen is most likely to form multiple (double or triple) bonds.

3 0
2 years ago
Enter the oxidation number of one atom of each element in each reactant and product.
Anton [14]

Answer:

1. -4

2. +1

3. 0

4. +4

5. -2

6. +1

7. -2

reduced = H

oxidized = O

Explanation:

Know oxidation rules.

- Hope this helped! Please let me know if you would like to learn this. I could show you the rules and help you work through them.

7 0
3 years ago
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