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7th Physical Science

Any compound that increases the number of hydronium ions when dissolved in water. acid
Any compound that increases the number of hydroxide ions when dissolved in water. base
An ionic compound that forms when a metal atom replaces the hydrogen of an acid. salt
A substance made up of atoms or ions of two or more different elements joined by chemical bonds. compound
The smallest unit of an element that maintains the properties of that element. atom
A substance that cannot be separated or broken down into simpler substances by chemical means; all atoms of an element have the same atomic number. element.
The amount of a particular substance in a given quantity of a solution. concentration
A property of matter that describes a substance's ability to participate in chemical reactions. chemical property
A characteristic of a substance that does not involve a chemical change, such as density, color, malleability, melting point, or hardness. physical property
able to burn or corrode caustic
substance is one that will damage or destroy other substances with which it comes into contact by means of a chemical reaction. corrosive
The reaction between an acid and a base in a water solution. neutralization reaction
A homogeneous mixture throughout which two or more substances are uniformly dispersed. solution