Chemistry, 18.03.2021 01:50 darius12318
Each Barium atom loses 2 valence electrons and each nitrogen atom gains 3 valence electrons to form barium nitride. Use the criss cross method to determine the chemical formula for barium nitride
Answers: 1
Chemistry, 22.06.2019 08:30
Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?
Answers: 1
Chemistry, 22.06.2019 09:00
This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.
Answers: 1
Chemistry, 22.06.2019 09:30
Based on its chemical properties, identify the position of each chemical family on the periodic table.
Answers: 3
Chemistry, 22.06.2019 10:50
8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm
Answers: 1
Each Barium atom loses 2 valence electrons and each nitrogen atom gains 3 valence electrons to form...
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