Chemistry, 11.01.2021 20:40 struckedblazing
The setup in the diagram is left outside during the day and night . Bubbles are continuously produced regardless of the presence of sunlight. what can you predict of the composition in the bubbles
A. The bubbles are always O2
B. The bubbles are always carbon dioxide CO2
C. During the day the bubbles are CO2 and in the night O2
D. During the day they are O2 and in the night CO2
Answers: 2
Chemistry, 22.06.2019 10:30
Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space
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Chemistry, 23.06.2019 00:00
Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3
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Which of the following is not a characteristic of a hydrogen bond? 1. it is responsible for the unusual physical properties of water. 2. it is weaker than a covalent bond. 3. it is stronger than other dipole-dipole interactions. 4. it can occur when hydrogen is covalently bound to very electronegative elements liks f, cl, br and i.
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The setup in the diagram is left outside during the day and night . Bubbles are continuously produce...
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