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Chemistry Words — Questions & Answers
Dive into Chemistry Words with this curriculum-aligned educational Trivia Quiz for Grade 7-8. This medium challenge helps students understand key Science concepts through interactive learning. Ideal for reinforcing classroom lessons and building subject mastery.
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What is the basic unit of a chemical element?
Molecule Compound Atom Ion✓ Atom
An atom is the smallest particle of an element that retains the chemical properties of that element.
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What do you call a substance that cannot be broken down into simpler substances by chemical means?
Compound Element Molecule Mixture✓ Element
An element is a pure substance consisting only of atoms that all have the same number of protons in their atomic nuclei.
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What is formed when two or more atoms join together chemically?
Element Atom Molecule Ion✓ Molecule
A molecule is formed when two or more atoms bond together chemically.
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Which term describes a substance made up of two or more different elements chemically bonded together?
Mixture Element Compound Solution✓ Compound
A compound is a substance formed when two or more chemical elements are chemically bonded together.
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What is the name for a substance that is not pure and is made of two or more substances that are not chemically bonded?
Compound Element Molecule Mixture✓ Mixture
A mixture is a substance comprising two or more components not chemically bonded.
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What is the term for a charged atom or molecule?
Proton Electron Neutron Ion✓ Ion
An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.
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What is the process called when a solid changes directly into a gas?
Melting Evaporation Sublimation Condensation✓ Sublimation
Sublimation is the transition of a substance directly from the solid to the gas state, without passing through the liquid state.
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What is the term for the amount of a substance that contains about 6.022 x 10^23 particles?
Gram Liter Mole Density✓ Mole
A mole is a unit of measurement used in chemistry to express amounts of a chemical substance. It is defined as containing 6.022 x 10^23 elementary entities.
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What do you call the substance that is dissolved in a solution?
Solvent Solute Mixture Compound✓ Solute
The solute is the substance that is dissolved in a solvent to form a solution.
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What is the measure of how much solute is dissolved in a given amount of solvent?
Density Volume Concentration Mass✓ Concentration
Concentration refers to the amount of solute dissolved in a specific amount of solvent or solution.