На сумiш порошкiв магнiю та магнiй оксиду масою 11,2 г. подiяли надлишком етановоi кислоти. видiлився газ обемом 6,72 л. (н. у.) обчислiть масовi частки речовин у сумiшi. назвiть газ

A) 1. what parts of great britain are washed by the atlantic ocean? 2. what ocean washes the north -west and west of great britain? 3. are the north - west and west of great britain washed by the atlantic ocean? 4. the north - west and west of great britain are washed by the atlantic ocean, aren't they? 5. are the north west and west of great britain washed by atlantic ocean or by pacific ocean? b) 1. the weather changes very often, doesn't it? 2 what changes very often? 3. does the weather change very often? 4 how often does the weather change? 5.does the weather change very often, or rare ? c) 1. the iceland of great britain is quite distinctly divided into 2 parts : mountainous (north and west ) and lowlands, sometimes hilly, isn't it? 2. how many parts is the iceland of great britain divided into? 3. is the iceland of great britain divided into 2 parts or 3 parts? 4. what are the 2 quite distinctly divided parts of the island of great britain consist of? 5. is the iceland of great britain quite distinctly divided into 2 parts mountainous ( north and west ) and lowlands, sometimes hilly?