Multiple Choice
How many hydrogen atoms are present in a molecule of water (H_2O)?
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Table of contents
- 1. Intro to General Chemistry3h 29m
- Physical & Chemical Changes19m
- Chemical Properties7m
- Physical Properties5m
- Intensive vs. Extensive Properties13m
- Temperature12m
- Scientific Notation13m
- SI Units7m
- Metric Prefixes24m
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- Conversion Factors16m
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- Density12m
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- 2. Atoms & Elements4h 16m
- The Atom9m
- Subatomic Particles15m
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- Ions27m
- Atomic Mass28m
- Periodic Table: Classifications11m
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- 22. Organic Chemistry5h 7m
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- Structural Formula8m
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- Spatial Orientation of Bonds3m
- Intro to Hydrocarbons16m
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- Chirality15m
- Functional Groups in Chemistry11m
- Naming Alkanes4m
- The Alkyl Groups9m
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- Naming Alcohols11m
- Naming Alkenes11m
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- Naming Ketones5m
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- Naming Carboxylic Acids4m
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- Alkane Reactions7m
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- 23. Chemistry of the Nonmetals2h 39m
- Main Group Elements: Bonding Types4m
- Main Group Elements: Boiling & Melting Points7m
- Main Group Elements: Density11m
- Main Group Elements: Periodic Trends7m
- The Electron Configuration Review16m
- Periodic Table Charges Review20m
- Hydrogen Isotopes4m
- Hydrogen Compounds11m
- Production of Hydrogen8m
- Group 1A and 2A Reactions7m
- Boron Family Reactions7m
- Boron Family: Borane7m
- Borane Reactions7m
- Nitrogen Family Reactions12m
- Oxides, Peroxides, and Superoxides12m
- Oxide Reactions4m
- Peroxide and Superoxide Reactions6m
- Noble Gas Compounds3m
- 24. Transition Metals and Coordination Compounds3h 16m
- Atomic Radius & Density of Transition Metals11m
- Electron Configurations of Transition Metals7m
- Electron Configurations of Transition Metals: Exceptions11m
- 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 Complexes15m
- Orientations of D Orbitals4m
- Intro to Crystal Field Theory10m
- Crystal Field Theory: Octahedral Complexes5m
- Crystal Field Theory: Tetrahedral Complexes4m
- 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
3. Chemical Reactions
Molecular Formula
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
How many total atoms are present in one molecule of H_2O_2?
A
2
B
5
C
4
D
3
Verified step by step guidance1
Identify the chemical formula of the molecule, which is H_2O_2. This means the molecule contains hydrogen (H) and oxygen (O) atoms.
Determine the number of each type of atom in the molecule by looking at the subscripts: there are 2 hydrogen atoms and 2 oxygen atoms.
Add the number of hydrogen atoms and oxygen atoms together to find the total number of atoms in one molecule.
Write the expression for the total atoms as: \$2 + 2$.
Calculate the sum to find the total number of atoms in one molecule of H_2O_2.
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