Результаты (
английский) 2:
[копия]Скопировано!
2. Why do the majority of the substances dissolved in the water, but do not decompose in the air? 3. Why sea water is salty, and in the river - no? 4. How many isotopes of hydrogen and oxygen is open and how do they differ? 5. Where to use heavy water? 6. How many types of water exists and whether it is possible to count them?
переводится, пожалуйста, подождите..
