Molecules

What is a molecule?

• A type of cell
• A type of atom
• A type of organism
• A group of atoms bonded together

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What are atoms?

• The smallest unit of a chemical element
• A type of molecule
• A type of cell
• A type of organism

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What is the difference between mixtures and pure substances?

• Mixtures are composed of one type of particle, while pure substances are composed of different types of particles
• Mixtures can be separated into their components by physical methods, while pure substances cannot
• Mixtures are always solid, while pure substances can be in any state
• Mixtures are always liquid, while pure substances are always solid

How are elements identified?

• By their atomic number
• By their color
• By their size
• By their weight

How are compounds identified?

• By their color
• By their smell
• By their chemical properties
• By their size

Where can you find a list of all the elements?

• Periodic Table
• Dictionary
• Encyclopedia
• World Map

What is a compound?

• A compound is a substance formed when two or more chemical elements are chemically bonded together.
• A compound is a single element.
• A compound is a mixture of elements.
• A compound is a type of molecule.

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What is a chemical formula?

• A type of mathematical equation
• A type of cooking recipe
• A notation that shows the elements present in a compound and their relative proportions
• A type of computer programming language

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What is a pure substance?

• A substance that is made up of only one type of atom
• A substance that is made up of multiple types of atoms
• A substance that is made up of only one type of molecule
• A substance that is made up of multiple types of molecules

Tags

NGSS.MS-PS1-1

What makes up an element?

• Atoms
• Molecules
• Compounds
• Mixtures

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