ответ: 1. there is a big tree in the garden. 2. there is a bank
near here. - where is bank? 3. there is a new
supermarket in the center of our town. 4. there is a hotel
over there. hotel isn't cheap. 5. where is the cat?
cat is on the sofa. 6. where is the book? - book is on the
shelf. 7. where are the flowers? - flowers are in a
beautiful vase. 8. where is the vase? - the vase is on a little table near the window. 9. open the window, please. the weather is fine today. i can see
sun in the sky, i can see a nice little bird. bird is
sitting on a big tree. the tree is green. 10. there is a
little white cloud in the sky. 11. we have a large room.
there is a big sofa in the room and a little lamp on
wall over the sofa. i like to sit on the sofa and read a good book.
Кислоты с числом атомов углерода менее 6 не удовлетворяют условию. Из изомерных пентанов, образующихся из солей кислот формулой C6H12O2, только метилбутан имеет более трех монозамещенных изомеров. Структурные формулы изомерных кислот:
ответ: 1. there is a big tree in the garden. 2. there is a bank
near here. - where is bank? 3. there is a new
supermarket in the center of our town. 4. there is a hotel
over there. hotel isn't cheap. 5. where is the cat?
cat is on the sofa. 6. where is the book? - book is on the
shelf. 7. where are the flowers? - flowers are in a
beautiful vase. 8. where is the vase? - the vase is on a little table near the window. 9. open the window, please. the weather is fine today. i can see
sun in the sky, i can see a nice little bird. bird is
sitting on a big tree. the tree is green. 10. there is a
little white cloud in the sky. 11. we have a large room.
there is a big sofa in the room and a little lamp on
wall over the sofa. i like to sit on the sofa and read a good book.
объяснение:
думаю так, но всё равно проверь
еакция декарбоксилирования солей предельных карбоновых кислот:
CnH2n+1COOH+MeOHCnH2n+2+Me2CO3
Кислоты с числом атомов углерода менее 6 не удовлетворяют условию. Из изомерных пентанов, образующихся из солей кислот формулой C6H12O2, только метилбутан имеет более трех монозамещенных изомеров. Структурные формулы изомерных кислот:
СН3-СH2-CH(CH3)-CH2-COOH 3-метилпентановая кислота
CH3-CH(CH3)-CH2-CH2-COOH 4-метилпентановая кислота
СH3-CH(CH3)-CH(CH3)-COOH 2,3-диметилбутановая кислота
СH3-CH2-C(CH3)2-COOH 2,2-диметилбутановая кислота
Объяснение: