Chemistry, 20.09.2020 16:01 youngsiron
Boron-10 has an atomic mass of 10.0129 amu and an abundance of 19.78%.
Boron-11 has an atomic mass of 11.0093 amu and is 80.22% abundant. Calculate
the atomic mass of the element Boron (to two decimals).
Answers: 1
Chemistry, 22.06.2019 12:20
Consider the reaction of a(g) + b(g) + c(g) => d(g) for which the following data were obtained: experiment initial [a], mol/l initial [b], mol/l initial [c], mol/l initial rate, mol/l.s 1 0.0500 0.0500 0.0100 6.25 x 10^-3 2 0.100 0.0500 0.0100 2.50 x 10^-2 3 0.100 0.100 0.0100 1.00 x 10^-1 4 0.0500 0.0500 0.0200 6.25 x 10^-3 what is the rate law for the reaction?
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State one important difference between a physical change and a chemical change?
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What kind of intermolecular forces act between a hydrogen fluoride molecule and a hydrogen peroxide molecule? note: if there is more than one type of intermolecular force that acts, be sure to list them all, with a comma between the name of each force.
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Chemistry, 23.06.2019 07:10
1) a light bulb takes in 30 of energy per second. it transfers 3j as use energy. calculate the efficiency. second. it transfers 3j as useful light energy and 27j as heat energy. calculate the efficiency
Answers: 1
Boron-10 has an atomic mass of 10.0129 amu and an abundance of 19.78%.
Boron-11 has an atomic mass...
Computers and Technology, 09.12.2019 22:31