Answer:
An SN2 (substitution nucleophilic bimolecular) reaction
Explanation:
This is a type of organic reaction that involves a nucleophile attacking an electrophilic center, resulting in the displacement of a leaving group from that center. This type of reaction typically occurs at a saturated carbon atom, where the nucleophile displaces a leaving group attached to that carbon atom. The reaction is bimolecular because it involves the collision of two molecules, the nucleophile and the substrate.
Answer:
When we throw a projectile up, the negative gravity acceleration acts on it. Thus, when the ball reaches the highest point, the speed of the ball becomes zero.
Explanation:
Acceleration is a vector magnitude that indicates the variation of speed per unit of time.
As displacement, velocity and acceleration are vectors we will analyze this vectorly.
We consider positive acceleration when the acceleration vector is directed in the same direction as the movement. (Acceleration)
On the other hand, we consider negative acceleration when the acceleration vector is directed in the opposite direction to the movement. (de-acceleration)
Answer:
2) condensing of water vapor
Explanation:
Entropy is the measure of disorder in a system. Disorder means how "separated" and distanced the molecules, particles, etc. are from each other. Solids and crystals have rigid structures meaning that they have less disorder than gases and liquids that have free structures. Gases and liquids have a higher disorder than solids and crystalline structures. An increase in entropy means that the disorder is increasing; more heat and energy are being added. A decrease in entropy means that the disorder is decreasing and the structure becomes more rigid and ordered; less heat and energy are being added. So the condensing of water vapor means that disorder is decreasing, thus the entropy is decreasing.
I hope this makes sense :)
The law that can be applied here is Charle’s Law which states that for a fixed mass of gas and at constant pressure, the volume is directly proportional with the absolute temperature. It is represented by the equation of V1/T1=V2/T2. Since there is no negative volume, we will change the temperature into Kelvin, (-123+273=150K) and (70+273=300K). plugging in the values, V2 = (300K)(120mL/150K) we get a volume of 240mL.
The solutes dissolves in solvent results in the formation of a solution.
Those mixtures in which the components of mixture are uniformly distributed throughout the mixture are said to be homogeneous.
Those mixtures in which the components of mixture are not uniformly distributed throughout the mixture are said to be heterogeneous.
Those solutions whose concentrations are accurately known are known as standard.
Hence, a mixture of uneven distribution and easy separation is heterogeneous.
Answer:
A heterogenous separation!
Explanation:
B. 12 carbon atoms
C. 24 carbon atoms
D. 3 carbon atoms
The fewer the carbon atoms, the closer it is to being a gas. The only one you have to check out is A which is hexane. You know that gasoline at the pumps has 8 carbons and its a liquid. So B and C are both not gases because they are above 8.
C6 (hexane) is a liquid at room temperature not a gas.
The answer is D. If there is a gas present, it must be C3