Answer:
Conversion of alcohols to alkenes: R-CH2-CHOH-R → R-CH=CH-R + H2O
Conversion of carboxylic acids to acid anhydrides 2 RCO2H → (RCO)2O + H2O
Explanation:
Dehydration
In chemistry, a dehydration reaction is one that involves the loss of water. In organic synthesis, where an acid is often used as a catalyst, there are numerous examples of dehydration reactions: Conversion of alcohols to ethers: 2 R-OH → R-O-R + H2O Conversion of alcohols to alkenes: R-CH2-CHOH-R → R-CH=CH-R + H2O Conversion of carboxylic acids to acid anhydrides 2 RCO2H → (RCO)2O + H2O Conversion of amides to nitriles: RCONH2 → R-CN + H2O
Sources:
Klein Organic Chemistry. 2th edition
Mcmurry's Organic Chemistry. 9th edition.
Answer: It can cause higher mortality rates, but also reduce stroke.
Explanation:
Studies show that atenolol can reduce stroke risk, but not mortality rates, heart attack rates, and cardiovascular events in the elderly.
Answer:Smoking during pregnancy increases the risk of health problems for developing babies, including preterm birth, low birth weight, and birth defects of the mouth and lip. Smoking during and after pregnancy also increases the risk of sudden infant death syndrome (SIDS). and Smoking doubles your risk of abnormal bleeding during pregnancy and delivery. This can put both you and your baby in danger. Smoking raises your baby's risk for birth defects, including cleft lip, cleft palate, or both.
Explanation:
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The arrangement of the abdominal muscles conveys strength to the abdominal wall because of its arrangement into layers.
The abdominal wall is composed of the muscles and structures that cover the abdominal cavity. The muscles of this zone are divided according to their location. This includes:
- Internal and external abdominal oblique
- Transversus muscle
- Rectus muscle
- Pyramidalis muscle
All of these structures are arranged into layers, in this way some of these muscles can be found at a deeper level than others. This particular arrangement makes the abdominal wall to be very strong as different layers of muscles pile up.
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