Midterm 24-25 7th Science

An ________________ is represented by a single uppercase letter, or represented by an uppercase letter followed by a lowercase letter on the periodic table.

The ________________ are numbers that are found on the bottom ________________-hand side of each element symbol. They tell you the number of ________________ for that element in the molecule. If an element symbol has no subscript next to it, then this indicates that there is only ________________ atom of this element in the molecule.

Tags

NGSS.MS-PS1-1

A ____________ is formed when two or more different elements are chemically bonded together.

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NGSS.MS-PS1-1

The smallest unit of an element that retains its properties is called an ____________.

In a chemical formula, the ____________ tells us how many molecules of a chemical formula are present.

In a ____________ change, the chemical composition of a substance remains the same.

The formation of rust on iron is an example of a ____________ change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

During a chemical change, ____________ substances are formed.

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NGSS.MS-PS1-2

Elements on the periodic table are arranged by ____________________.

Water’s chemical formula is written as: ________. It is both a _______ and a _________.

Tags

NGSS.MS-PS1-1