Chemistry, 29.09.2021 02:00 dnarioproctor
Lodine has three isotopes; lodine with a mass of 127 amu and an
abundance of 80%, lodine with a mass of 128 amu and an
abundance of 3%. The last isotope has a mass of 126 amu with an
abundance of 17%. What is the average atomic mass of lodine?
Answers: 3
Chemistry, 22.06.2019 03:00
Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture
Answers: 1
Chemistry, 22.06.2019 05:40
Consider the elements bromine and chlorine; which elements has a larger ionic radius ?
Answers: 1
Chemistry, 22.06.2019 13:00
One of the hopes for solving the world's energy problem is to make use of the fusion reaction 21h +31h --> 42he + 10n + energy how much energy is released when 1 mol of deuterium is fused with 1 mol of tritium according to the above reaction? the masses of the atoms and the neutrons are as follows: 21h = 2.0140 amu 31h = 3.01605 amu 42he = 4.002603 amu 10n = 1.008665 amu. the speed of light is 2.9979 x 108 m/s.
Answers: 1
Chemistry, 22.06.2019 21:30
While in europe, if you drive 125 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your carβs gas mileage is 32.0 mi/gal? assume that 1 euro=1.26 dollars
Answers: 2
Lodine has three isotopes; lodine with a mass of 127 amu and an
abundance of 80%, lodine with a ma...
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