@ndee81720iz: Giá sản phẩm có thể thay đổi theo từng thời điểm và chương trình ưu đãi của thương hiệu.

Khan Điếc
Khan Điếc
Open In TikTok:
Region: VN
Thursday 29 October 2026 06:13:43 GMT
609
3
1
1

Music

Download

Comments

linhmit_2211
Chuyen Nha Tom Tep :
Check ib cv mình nha team ui
2026-10-29 07:52:16
0
To see more videos from user @ndee81720iz, please go to the Tikwm homepage.

Other Videos

fastest to slowest SN2, 10 seconds, go 👇 search primary > secondary, and why a tertiary alkyl halide cannot do SN2 at all and goes SN1, E1 or E2 instead. there is one trap in this set, and it comes from looking at the carbon with the bromine but not at what sits on its neighbour (slide 4 has the 3 traps 🧐). the leaving group matters as well (iodide is better than bromide, which is better than chloride, and fluoride is a poor one), but here it is the same in all four, so only the crowding changes. the rate numbers on slide 3 are approximate relative rates for bromides. saved this? practice quizzes like it in the app what did you put last, A, B, C or D? 👇 #ochem #organicchemistry #sn2 #studytok #examprep" width="135" height="240">
fastest to slowest SN2, 10 seconds, go 👇 search "inkling orgo" on the App Store or go to tryinkling.app SN2 reaction rates of alkyl halides, for orgo 1 midterm 2: the four are A 2-bromopropane, B 1-bromo-2,2-dimethylpropane (neopentyl bromide), C bromomethane and D bromoethane, all reacting with the same strong nucleophile in the same polar aprotic solvent. the answer is on slide 3. an SN2 reaction is one step: the nucleophile attacks the carbon bonded to the halogen from the side opposite the leaving group (backside attack) while the bromide leaves, so anything that crowds that carbon or the space behind it slows the reaction down. that is steric hindrance, and it is why alkyl halide SN2 reactivity runs methyl > primary > secondary, and why a tertiary alkyl halide cannot do SN2 at all and goes SN1, E1 or E2 instead. there is one trap in this set, and it comes from looking at the carbon with the bromine but not at what sits on its neighbour (slide 4 has the 3 traps 🧐). the leaving group matters as well (iodide is better than bromide, which is better than chloride, and fluoride is a poor one), but here it is the same in all four, so only the crowding changes. the rate numbers on slide 3 are approximate relative rates for bromides. saved this? practice quizzes like it in the app what did you put last, A, B, C or D? 👇 #ochem #organicchemistry #sn2 #studytok #examprep

About