Chemistry, 17.04.2021 01:50 almasahagung
5. The reaction of magnesium oxide with hydrochloric acid carried out in a calorimeter caused the
temperature of water to change from 25.0°C to 46.0°C. In this reaction 4860J of energy was released. What
mass of water was present?
Answers: 1
Chemistry, 22.06.2019 10:50
8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm
Answers: 1
Chemistry, 22.06.2019 17:00
The arrangement of particles is most ordered in a sample of
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Chemistry, 23.06.2019 01:00
Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold
Answers: 2
5. The reaction of magnesium oxide with hydrochloric acid carried out in a calorimeter caused the
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