Chemistry, 12.07.2019 09:30 hannahkharel2
Aresting adult requires about 240 ml of pure oxygen/mind and breathes about 12 times every minute. if inhaled air contains 20 percent oxygen by volume and exhaled air 16 percent, what is the volume of air per breath
Answers: 1
Chemistry, 22.06.2019 05:30
What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion
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Chemistry, 22.06.2019 12:30
Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.
Answers: 2
Chemistry, 22.06.2019 14:30
The valence of aluminum is +3, and the valence of the chlorine is -1. the formula fir the aluminum chloride is correctly written as
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Chemistry, 22.06.2019 18:30
You open a can of soda at room temperature and hear a hiss. which of the following factors has changed inside the container? a.) atmospheric pressure b.) temperature of gas c.) type of gas d.) amount of gas
Answers: 1
Aresting adult requires about 240 ml of pure oxygen/mind and breathes about 12 times every minute. i...
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