It depends on the explosion. If it is a large one such as an atomic bomb, the correct answer would be A as light travels faster than sound. If the explosion is smaller like a firework or there are other obstacles impeding visual contact, then the answer would be C because sound cannot be blocked as light can
Answer:The product formed on reaction with hydroxide ion as nucleophile is 2R-hexane-2-ol.
The product formed on reaction with water would be a 50:50 mixture of
2S-hexane-2-ol. and 2R-hexane-2-ol.
Explanation:
2S-iodohexane on reactiong with hydroxide ion would undergo SN² substitution reaction that is substitution bimolecular. Hydroxide ion has a negative charge and hence it is a quite good nucleophile .
The rate of a SN² reaction depends on both the substrate and nucleophile . Here the substrate is a secondary carbon center having Iodine as a leaving group.SN² reaction takes place here as hydroxide ion is a good nucleophile and it can attack the secondary carbon center from the back side leading to the formation of 2R-hexane-2-ol.
In a SN² reaction since the the nucleophile attacks from the back-side so the product formation takes place with the inversion of configuration.
When the same substrate S-2-iodohexane undergoes a substitution reaction with water as a nucleophile then the reaction occurs through (SN¹) substitution nucleophilic unimolecular mechanism .
The rate of a SN¹ reaction depends only on the nature of substrate and is independent of the nature of nucleophile.
The SN¹ reaction is a 2 step reaction , in the first step leaving group leaves leading to the formation of a carbocation and once the carbocation is formed then any weaker nucleophile or even solvent molecules can attack leading the formation of products.
In this case a secondary carbocation would be generated in the first step and then water will attack this carbocation to form the product in the second step.
The product formed on using water as a nucleophile would be a racemic mixture of R and S isomers of hexane -2-ol in 50:50 ratio. The two products formed would be 2R-hexane-2-ol and 2S-hexane-2-ol.
Kindly refer the attachment for reaction mechanism and structure of products.
Answer:
the percentage of your solution that made up of HCI acid is 15%
Explanation:
The computation of the percentage of your solution that made up of HCI acid is given below:
Given that
There is 200g or a solution that have 0 g of hydrochloric acid (HCI)
Based on the above information
The percentage is
= 30g ÷ 200g
= 15%
Hence, the percentage of your solution that made up of HCI acid is 15%
Answer : The correct option is, (1) 0
Explanation :
Oxidation state or oxidation number : It represent the number of electrons lost or gained by the atoms of an element in a compound.
Oxidation numbers are generally written with sign (+ and -) first and then the magnitude.
When the atoms are present in their elemental state then the oxidation number will be zero.
As per question, 'Mn' atom is a free element that means it is present in their elemental state then the oxidation state will be zero.
Hence, the correct option is, (1) 0
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Answer:</h2>
Both of them will have same kinetic energy.
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Explanation:</h2>
- Kinetic energy is the energy of motion, every object in motion posses some kinetic energy.
- Kinetic energy can be calculated by the given formula,
i.e, K.E = 1/2 mv² .
Where, K.E is kinetic energy,
m is mass of the object
v is the velocity of the object
- On observing the formula we can state that K.E is directly proportional to mass(m) and velocity(v) of the object.
- Obviously, birds have more mass than bees but in question it has given 10 Kg of bees and 10 Kg of birds which means mass is same and also both of them are travelling with same velocity i.e 10m/s and hence both of them will have same kinetic energy(as both of the variables i.e m and v are same).
Result: Both bees and birds have same kinetic energy.