Chemistry, 18.03.2021 02:50, AgentPangolin
24.1% of all the isotopes of a an element have a mass of 75.23 amu, 48.7% have a mass
of 74.61 amu, and 27.2% have a mass of 75.20 amu.
What is the average mass of this element?
Answers: 2
Chemistry, 21.06.2019 15:40, tristen2001
Describe in detail the melting point behavior of the 80: 20 benzoic acid-mandelic acid mixture
Answers: 3
Chemistry, 22.06.2019 08:30, microwave13016
Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size
Answers: 1
24.1% of all the isotopes of a an element have a mass of 75.23 amu, 48.7% have a mass
of 74.61 amu,...
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