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8th Grade - Chapter 17 Chemical Reactions

Teacher: Mrs. Morey
Across
Physical property that is dependent on temperature and pressure and occurs in four forms - solid, liquid, gas or plasma
Process that produces chemical change, resulting in new substances that have properties different from those of the original substances
Minimum amount of energy needed to start a chemical reaction
Chemical reaction in which heat energy is absorbed
Substance that slows down a chemical reaction, making the formulation of a certain amount of product take longer
The smallest piece of matter that still retains the properties of the element
Substance that speeds up a chemical reaction but is not used up itself or permanently changed
Substance that forms as a result of a chemical reaction
Down
A type of protein that regulates chemical reactions in cells without being changed or used up
Chemical reaction in which heat energy is released
Measure of how fast a chemical reaction occurs
Shorthand form for writing what reactants are used and what products are formed in a chemical reaction; sometimes shows whether energy is produced or absorbed
Describes how much solute is present in a solution compared to the amount of solvent
Substance that exists before a chemical reaction begins