Chemistry, 02.10.2021 02:20 cxttiemsp021
Mr. David drove from his home to his work place. For the first 1.2 hours, he travelled at a constant speed of 65 km/h. For the next 2.3 hours, he travelled at a constant speed of 70 km/h. What was the average speed for the whole journey? km/h
Answers: 2
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Which element would mostly likely have an electron affinity measuring closest to zero
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Acandle’s wick is the fabric string that holds the flame, and it burns down at a constant slow pace when the candle is lit. the wick is usually surrounded by wax. which is the most important property of covalent compounds that makes them useful for making candle wax? a low boiling point a low melting point a high boiling point a high melting point
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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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Chemistry, 23.06.2019 01:00
If a sample of radioactive isotopes takes 600 minutes to decay from 400 grams to 50 grams, what is the half-life of the isotope?
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Mr. David drove from his home to his work place. For the first 1.2 hours, he travelled at a constant...
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