Вставьте необходимые по смыслу союзы придаточных дополнительных или обстоятельственных предложений: 1. The mass consisting of a dye, castor oil, waxes, lanolin and perfume is heated ___ a homogenous mixture is obtained. 2. It is not established ___ the addition of paraffin or lanolin raises the melting-point of the mixture. 3. It was recognized the element carbon plays an important role in organic chemistry. 4. we remove carbon compounds from the preparation, we shall see water and some minerals in it. 5. The life duration in the developing countries is still low the problem of nutrition requires combined efforts of their governments and scientists. 6. lipstick must be soft to produce a good application on lips, some organic hydroxyl compounds are added as binders. 7. starch is heated with dilute sulphuric acid, it transforms into glucose.

Милкович11    1   30.10.2021 03:50    2