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Chemistry, 21.06.2019 22:30
Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density
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Chemistry, 22.06.2019 15:00
Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?
Answers: 2
6. What is the trend in the ionic charges of the elements in Group 1, 2 and 3.? (Hint - does it go
Physics, 25.10.2019 21:43