객관식
Which part of an atom contains the protons and neutrons?
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- 1. Intro to General Chemistry3h 48m
- Classification of Matter18m
- Physical & Chemical Changes19m
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- Naming Alkanes4m
- The Alkyl Groups9m
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- Alkane Reactions7m
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- 23. Chemistry of the Nonmetals2h 39m
- Main Group Elements: Bonding Types4m
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- The Electron Configuration Review16m
- Periodic Table Charges Review20m
- Hydrogen Isotopes4m
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- Production of Hydrogen8m
- Group 1A and 2A Reactions7m
- Boron Family Reactions7m
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- Nitrogen Family Reactions12m
- Oxides, Peroxides, and Superoxides12m
- Oxide Reactions4m
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- Noble Gas Compounds3m
- 24. Transition Metals and Coordination Compounds3h 19m
- Atomic Radius & Density of Transition Metals11m
- Electron Configurations of Transition Metals7m
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- Paramagnetism and Diamagnetism10m
- Ligands10m
- Complex Ions5m
- Coordination Complexes7m
- Classification of Ligands11m
- Coordination Numbers & Geometry9m
- Naming Coordination Compounds22m
- Writing Formulas of Coordination Compounds8m
- Isomerism in Coordination Complexes17m
- Orientations of D Orbitals4m
- Intro to Crystal Field Theory10m
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- Crystal Field Theory: Square Planar Complexes4m
- Crystal Field Theory Summary8m
- Magnetic Properties of Complex Ions9m
- Strong-Field vs Weak-Field Ligands6m
- Magnetic Properties of Complex Ions: Octahedral Complexes11m
2. Atoms & Elements
The Atom
객관식
Which atoms combine to form a molecule of water?
A
Two hydrogen atoms and one oxygen atom
B
One hydrogen atom and two oxygen atoms
C
One hydrogen atom and one oxygen atom
D
Two oxygen atoms and two hydrogen atoms
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검증된 단계별 안내1
Understand that a molecule of water is composed of specific atoms bonded together to form H2O.
Recall the chemical formula for water, which is H2O, indicating the number of each type of atom in one molecule.
Interpret the formula H2O: the subscript '2' after H means there are two hydrogen atoms, and the absence of a subscript after O means there is one oxygen atom.
Conclude that a water molecule consists of two hydrogen atoms and one oxygen atom bonded together.
Verify that this matches the correct answer choice: 'Two hydrogen atoms and one oxygen atom.'
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