А
What is the chemical symbol for Hydrogen?
A. OCH
B. оне
C. Н
D. он20...
Chemistry, 25.02.2021 17:10 blythephillips2734
А
What is the chemical symbol for Hydrogen?
A. OCH
B. оне
C. Н
D. он20
Answers: 1
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Identify arrows pointing to bonding electrons. done h-0-0-h ) intro
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The allotropes of carbon include a variety of structures that include three-dimensional tetrahedral lattices, planes of hexagonal rings, cylindrical tubes of hexagonal rings, and spheres of five- and six-membered rings. similar shapes of network covalent atomic solids are possible with carbon nitride, boron, and pure silicon (e.g., silicene is a graphene-like allotrope of pure silicon). in contrast, silicates exist as either highly ordered or amorphous (more random) three-dimensional lattices. what could explain why there are there no naturally occurring sheets, stacked sheets, cylindrical tubes, or spheres of network covalent atomic solids composed of silicon and oxygen (sio2)? would pure silicate structures make good lubricants or good electrical conductors?
Answers: 3
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What is true according to the second law of thermodynamics
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Chemistry, 23.06.2019 16:50
Equal volumes of h2 and o2 are placed in a balloon and then ignited. assuming that the reaction goes to completion, which gas will remain in excess? 2h2 + o2 → 2h2o a. both are in equal proportion b. oxygen c. water d. hydrogen
Answers: 1
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