Предмет: Химия, автор: vavorskaa99

Допоможіть будьласка 7 клас Хімія даю 17 балів.
Яка маса кальцію у 200г крейди (СаСО3) якщо W (Ca) = 40% ? ) 10г 20г 40 r 80г​

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Автор ответа: rasulmameev10
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So, as unemployment reaches record levels, it's time to discuss what you can do to get a job. And we're lucky to have Jane Longley from the Department of Employment with us in the studio today, who can give some advice to those who are currently looking for work. Welcome, Jane. Hi. It's nice to be here. So, how can today's job hunters get back to work?

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