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WorksheetsScience Study Guide 2022 End of Semester Vocab
Total questions: 15
Worksheet time: 8mins
Definition of Atom
A measure of the amount of space an object takes up
The smallest unit of an element that has the chemical identity of that element
Two or more atoms held together by chemical bonds
The measure of the amount of matter in an object
Definition of Molecule
A substance that cannot be separated or broken down into simpler substances by chemical means
Matter cannot be created or destroyed in ordinary chemical or physical changes
The smallest unit of an element that has the chemical identity of that element
Two or more atoms held together by chemical bonds
Definition of Compound
A pure substance made up of 2 or more different types of atoms joined by chemical bonds
A substance that cannot be separated or broken down into simpler substances by chemical means
A chemical property that can only be observed by trying to change the identity of a substance in a chemical reaction
Uses chemical formulas to model what happens in a chemical reaction
Definition of Element
Matter cannot be created or destroyed in ordinary chemical or physical changes
The substance or substances that form in a chemical reaction
A substance that cannot be separated or broken down into simpler substances by chemical means
A pure substance made up of 2 or more different types of atoms joined by chemical bonds
Definition of Pure Substance
A substance that cannot be separated or broken down into simpler substances by chemical means
A measure of the amount of space an object takes up.
A measure of the amount of matter in an object
A material that cannot be physically separated into its parts
Definition of Physical Property
A property that can only be observed by trying to change the identity of a substance in a chemical reaction
Matter cannot be created or destroyed in ordinary chemical or physical changes
The process in which the building blocks of matter-atoms-are rearranged to produce different substances
A combination of chemical symbols and number that represent a single unit of a substance
Definition of Chemical property
A property that can only be observed by trying to change the identity of a substance in a chemical reaction
Uses chemical formulas to model what happens in a chemical reaction
The substance or substances that form in a chemical reaction
Can only be observed by trying to change the identity of a substance in a chemical reaction
Definition of mass
A measure of the amount of space an object takes up
A material that cannot be physically separated into its parts
A measure of the amount of matter in an object
Matter cannot be created or destroyed in ordinary chemical or physical changes
Definition of Volume
A measure of the amount of matter in an object
a measure of the amount of space an object takes up, Formula for regular objects: Length times Width times Height
A material that cannot be physically separated into its parts
The substance or substances that form in a chemical reaction
Definition of Amorphous Structure
A pure substance made up of 2 or more different types of atoms joined by chemical bonds
Crystalline silicon has an ordered arrangement that makes it more efficient at converting sunlight to electrical energy, but it is also more expensive to use
A combination of chemical symbols and number that represent a single unit of a substance
Amorphous silicon has a less ordered, less uniform structure than crystalline silicon
Definition of Crystalline structure
The process in which the building blocks of matter-atoms-are rearranged to produce different substances
Crystalline silicon has an ordered arrangement that makes it more efficient at converting sunlight to electrical energy, but it is also more expensive to use
uses chemical formulas to model what happens in a chemical reaction
The smallest unit of an element that has the chemical identity of that element
The process in which the building blocks of matter-atoms-are rearranged to produce different substances is called the Law of Conservation of Matter
True
False
Definition of Reactant
The original substance or substances in a chemical reaction
The state of matter that can change both shape and volume
A substance that cannot be separated or broken down into simpler substances by chemical means
A material that cannot be physically separated into its parts
Definition of Law of Conservation of Matter
The substance or substances that form in a chemical reaction
The process in which the building blocks of matter-atoms-are rearranged to produce different substances
The state of matter in which the volume and shape of a substance are fixed
Matter cannot be created or destroyed in ordinary chemical or physical changes
Definition of Chemical Equation
A measure of the amount of matter in an object
The ratio of the mass of a substance to its volume.
Uses chemical formulas to model what happens in a chemical reaction
A measure of the amount of space an object takes up
