Рассчитайте, чему равно содержание кислорода в цинковом шпате ZnCO3 (с точностью до 1%) - №11525238

Рассчитайте, чему равно содержание кислорода в цинковом шпате ZnCO3 (с точностью до 1%)
- Предмет:
  Химия
- Автор:
  park
- 6 лет назад

Ответы 1

Mr(ZnCO3) = 65 + 12 + 48 = 125w (O) = 48/125*100 = 38%
- Автор:
  montgomery
- 6 лет назад
- 0
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1. Translate the text into Russian.
There is a good proverb that I like very much: “We eat to live, but do not live to eat.” I think this is true because food is something that we need to stay alive. Food is a source of energy. Nevertheless I like eating tasty food even though I am not much into it. So, for some people food is a source of pleasure, too. But the food that we eat should also be healthy.
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