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Questions and Answers
Which of the following statements accurately describes the relationship between elements, compounds, and mixtures?
Which of the following statements accurately describes the relationship between elements, compounds, and mixtures?
- Elements are combinations of compounds, while mixtures are chemically bonded substances.
- Mixtures are pure substances, compounds are physically combined elements, and elements are chemically bonded substances.
- Elements are pure substances, compounds are chemically bonded elements, and mixtures are physically combined substances. (correct)
- Compounds are formed by physically combining elements, and mixtures involve chemically bonding elements.
If a substance is composed of only one type of atom, which of the following classifications does it belong to?
If a substance is composed of only one type of atom, which of the following classifications does it belong to?
- Molecule
- Element (correct)
- Mixture
- Compound
Which subatomic particle primarily determines the chemical properties of an atom?
Which subatomic particle primarily determines the chemical properties of an atom?
- Proton, due to its location in the nucleus.
- Electron, due to its charge and arrangement. (correct)
- Neutron, due to its mass.
- All subatomic particles equally affect the chemical properties.
What distinguishes a compound from a mixture?
What distinguishes a compound from a mixture?
Which of the following is an example of a compound?
Which of the following is an example of a compound?
How are molecules related to elements and compounds?
How are molecules related to elements and compounds?
What is the net electric charge of an atom that contains 10 protons, 10 neutrons, and 10 electrons?
What is the net electric charge of an atom that contains 10 protons, 10 neutrons, and 10 electrons?
If a substance can be separated into its components through physical means such as filtration or evaporation, is it most likely an element, compound, or mixture?
If a substance can be separated into its components through physical means such as filtration or evaporation, is it most likely an element, compound, or mixture?
Consider a sealed container with nitrogen and oxygen gases that aren't chemically bonded. This is best classified as:
Consider a sealed container with nitrogen and oxygen gases that aren't chemically bonded. This is best classified as:
Which of the following subatomic particles contributes significantly to the mass of an atom but does NOT affect its charge?
Which of the following subatomic particles contributes significantly to the mass of an atom but does NOT affect its charge?
Flashcards
Elements
Elements
Pure substances consisting of only one type of atom.
Compounds
Compounds
Substances formed by the chemical bonding of two or more elements.
Mixtures
Mixtures
Combinations of two or more substances that are physically combined but not chemically bonded.
Protons
Protons
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Neutrons
Neutrons
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Electrons
Electrons
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Molecules
Molecules
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Study Notes
Elements
- Pure substances
- Consist of only one type of atom
- Examples include Carbon, Oxygen and Hydrogen
Compounds
- Substances formed from two or more elements
- Elements are chemically bonded
- Water (H2O) and Carbon Dioxide (CO2) are examples
Mixtures
- Consist of two or more substances
- Substances are physically combined
- Substances are not chemically bonded
- Examples include paint and air
Atomic Structure
- Atoms contain protons, neutrons and electrons
- Protons have a positive charge
- Neutrons have a neutral charge
- Electrons have a negative charge
Molecules
- Molecules comprise two or more atoms
- Atoms are bonded together
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