К смеси формиата калия и карбоната натрия добавили концентрированную серную кислоту и слегка нагрели. В результате выделилось

решение задания по химии
 

Can you speak English? (Вы говорите по-английски?)       
Can you read English stories and fairy tales? (Вы можете читать английские рассказы и сказки?)       
Can you write English words and sentences? (Вы можете написать английские слова и фразы?)       
Can you write letters to your English friends? (Можете ли вы писать письма ваших английских друзей?)       
Can you translate from English into Russian? (Можете ли вы перевести с английского на русский?)       
Can you translate from Russian into English? (Можете ли вы перевести с русского на английский язык?)       
Can you learn an English poem by heart? (Вы можете узнать английский стихотворение наизусть?)       
Can you sing English songs? (Можете ли вы петь английские песни?)

a) favourite, merry, speak, sometimes, words
I am a student. My favourite subject is English. In the lesson we speak English, learn words, sing merry English songs. Sometimes we play games
b) draw, rubber, pencils, well, read
Ann is five. She can’t read and write. But she can draw very well. Ann can draw a horse, a flower and a car. She has a lot of coloured pencils and paints. She has a big rubber to get rid of bad pictures
c) school, break, time, Maths, count
My name is Ted. I live in London. I go to school. I like Maths. I can count well. I have many friends at school. We play games during the break. I have a good time at school