Chemistry, 09.03.2021 01:20 tanyadeewill
The __ rule of balancing equations states that you must change the ___ to add additional atoms when balancing equations
Answers: 2
Chemistry, 22.06.2019 14:00
The two naturally occurring isotopes of chlorine are 35cl (34.969 amu, 75.77%) and 37cl (36.966 amu, 24.23%). the two naturally occurring isotopes of bromine are 79br (78.918 rm amu, 50.69%) and 81br (80.916 amu, 49.31%). chlorine and bromine combine to form bromine monochloride, brcl. 1. how many peaks will be present in a mass spectrum for brcl? the four combinations of molecule possible given these four isotopes are: 81br37cl, 81br35cl, 79br37cl, and 79br35cl. 2. what are the masses of the four different brcl molecules? express the masses using six significant figures, in decreasing numeric order (highest to lowest), separated by commas.
Answers: 3
Chemistry, 23.06.2019 00:00
How many moles of water are created if 3 moles of hydrogen react completely with excess oxygen?
Answers: 3
Chemistry, 23.06.2019 01:00
Reactions in cells take place at about a. 40Β°c b. 0Β° c. 100Β°c d. 60Β°c
Answers: 1
Chemistry, 23.06.2019 11:50
What is the oxidation half-reaction for this unbalanced redox equation? cr2o72β + fe2+ β cr3+ + fe3+ cr3+ β cr2o72β cr2o72β β cr3+ fe3+ β fe2+ fe2+ β fe3+?
Answers: 2
The __ rule of balancing equations states that you must change the ___ to add additional atoms when...
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