sarahsteelman
23.11.2020 •
Chemistry
How many molecules of oxygen gas (O2) are in 8 grams of oxygen
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Ответ:
Ответ:
Hence, in 8g of Oxygen molecules, there are 3. 011 x 10²³ Oxygen atoms. In this way, how many moles are in 16 grams of oxygen? In other words, 1 mole of oxygen would contain molecules
Explanation:
Ответ:
Explanation:
Given that , A can of cola contains approximately 240 calories. And we consume two cans of cola each day. So , calories consumed in one day
In a week there are seven days. So calories consumed in a week
Which is approximately equal to 3,400 calories.
Hence option (a) is correct .