Honors Chemistry Final Exam Review Game

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What is an atom?

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An atom is the smallest unit of matter that retains the properties of an element. It consists of a nucleus made of protons and neutrons, surrounded by electrons.

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Why have many models of the atom been developed?

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Models of the atom have been developed due to new information leading to new explanations, scientists questioning each other's work, and advancements in equipment allowing for new discoveries.

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What is the significance of the periodic table?

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The periodic table organizes elements by increasing atomic number and groups them by similar chemical properties, allowing for easier understanding of element relationships.

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What is a chemical property of matter?

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A chemical property is a characteristic of a substance that becomes evident during a chemical reaction, such as reactivity with an acid.

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How is pH related to hydrogen ion concentration?

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pH is a measure of the hydrogen ion concentration in a solution. A lower pH indicates a higher concentration of hydrogen ions.

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What is the pH of a solution with a hydrogen ion concentration of 0.1 M?

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The pH of a solution with a hydrogen ion concentration of 0.1 M is 1.

Front

Which element is a good conductor of electricity at STP?

Back

Aluminum (Al) is a good conductor of electricity at standard temperature and pressure (STP) and has a relatively low electronegativity.

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What is the difference between a physical property and a chemical property?

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A physical property can be observed without changing the substance's identity (e.g., boiling point), while a chemical property can only be observed during a chemical change (e.g., reactivity).

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What does STP stand for in chemistry?

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STP stands for Standard Temperature and Pressure, which is defined as 0 degrees Celsius (273.15 K) and 1 atmosphere (101.3 kPa) of pressure.

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What is electronegativity?

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Electronegativity is a measure of an atom's ability to attract and hold onto electrons in a chemical bond.