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ECMS Chapter 4.2

Chapter 4 Section: 3, 4, & 5 Vocabulary

The way in which acids react with some metals so as to eat away at the metal. Corrosive
A range of values used to espress the concentration of hydrogen ions in a solution pH Scale
A substance that tastes bitter, feels slippery, and turns red litmus paper blue Base
A compound that changes color in the presence of an acid or base Indicator
A substance that tastes sour, reacts with metals and carbonates, and turns blue litmus paper red. Acid
An ionic compound made from the neutralization of an acid with a base Salt
A reaction of an acid with a base yielding a solution that is not as acidic or basic as it started Neutralization
A negatively charges ions made of oxygen and hydrogen Hydroxide Ion
The process that breaks down complex molecules of food into small molecules Digestion
A positively charged ion formed of a hydrogen atom that has lost an electron Hydrogen Ion
The process that breaks large molecules of food into smaller molecules Chemical Digestion
The physical process that tears, grinds, and mashes large pieces of food into smaller ones Mechanical Digestion
Created by: Mr.Waltman