ответьте на вопросы, употребив глагол в пассивном залоге: will he explain the properties of this compound? → yes, the properties of this compound will be explained by him. 1.will you use sulfanilamide in your experiment? 2. will he use cold hydrochloric acid in the test for sulfanilamide? 3. will he investigate all the samples? 4. will they receive an intermediate substance on treatment with excess ammonia
2) No, cold hydrochloric acid won't be used in the test for sulfanilamide by him.
3) Yes, all the samples will be investigated by him.
4) Yes, an intermediate substance on treatment with excess ammonia will be received by them.