Be sure to answer all parts. Explain why the addition of HBr to alkenes A and C is regioselective, forming addition products B and D, respectively. 8 Addition to alkene A is regioselective because: Alkene A forms a resonance stabilized carbocation on the C closest to the O atom. Alkene A forms an inductively destabilized carbocation on the C closest to the O atom. The Br atom is less crowded on a primary carbon than on a secondary carbon. Alkene A forms a primary carbocation, which is always more stable than a secondary carbocation. Addition to alkene C is regioselective because: Alkene C forms a secondary carbocation, which is always more stable than a primary carbocation. Alkene C forms a carbocation on the C farthest from the inductively destabilizing COOCH3 group. The Br atom is less crowded on the carbon that is farther away from the COOCH3 group. Alkene C forms a carbocation that is resonance stabilized by the COOCH3 group.

1. according to the article, the chinese government has tried to control its people in all of the following ways except: question 1 options: create and spread propaganda in the media censorship of the media allowing people to create their own social media deleting people's social media posts without their permission question 2 (1 point) 2. when a government has total control over its citizens, including the media, it is a of government question 2 options: constitutional monarchy parliamentary democracy autocracy presidential democracy question 3 (1 point) according to the article, "social credit" is question 3 options: an experiment to people talk on-line a farming experiment that hurt people under mao ze dong using someone else's data from the internet, to give or take away things such as the right to buy an airline ticket a credit you get in china for having friends in real life, and not just on social media question 4 (1 point) china wants to take control over social media in which other region? question 4 options: taiwan chile japan hong kong

Which of these sequences lists the correct order for the creation of sedimentary rock from sediment? a. deposition, burial, compaction, cementation b. burial, deposition, compaction, cementation c. compaction, deposition, burial, cementation d. cementation, deposition, burial, compaction

Predict the products butane (c4h10) + oxygen —>