Химия про100. Визначення валентності.
Тут приведены способы определения валентности с помощью периодической системы и таблицы растворимости соединений.
4 months ago 00:00:29 1
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11 months ago 00:02:34 1
![♥Crossover♥ - [Scar & Nala] - │With Eyes Wide Shut│Dedicated to SpiritsQueen](https://sun9-75.userapi.com/h9VvEMFGz3Nz6qTQZE3azpm-V8TVj38QxtvxDg/IjKyFVyZlEg.jpg)
1 year ago 00:04:25 1
1 year ago 00:02:28 1
![Who Are You, Really? [ Sol PMV ]](https://sun9-18.userapi.com/01dQqRYUFgsCpe21PzRMqdy2xrD_-H_zUxSGRA/jBw8sILyD0M.jpg)
1 year ago 00:01:14 1
![The Soft Parade [part 4]](https://sun9-41.userapi.com/wZmhypCKh97kLQESZa-mXpfj57Y_CyxQIsl5Ew/dRqe39fijU4.jpg)
1 year ago 00:04:21 4
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4 years ago 00:02:24 1
![Jacob + Bella || Stay with me [For mjpg95]](https://sun9-22.userapi.com/N15NRa1nGIYd72Z9JBFgwjTbKJUJnMwn5XU4Ug/orvMePaJ2E0.jpg)
4 years ago 00:23:52 1
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