Chapter 4 Section: 3, 4, & 5 Vocabulary
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| The way in which acids react with some metals so as to eat away at the metal. | Corrosive
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| A range of values used to espress the concentration of hydrogen ions in a solution | pH Scale
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| A substance that tastes bitter, feels slippery, and turns red litmus paper blue | Base
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| A compound that changes color in the presence of an acid or base | Indicator
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| A substance that tastes sour, reacts with metals and carbonates, and turns blue litmus paper red. | Acid
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| An ionic compound made from the neutralization of an acid with a base | Salt
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| A reaction of an acid with a base yielding a solution that is not as acidic or basic as it started | Neutralization
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| A negatively charges ions made of oxygen and hydrogen | Hydroxide Ion
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| The process that breaks down complex molecules of food into small molecules | Digestion
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| A positively charged ion formed of a hydrogen atom that has lost an electron | Hydrogen Ion
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| The process that breaks large molecules of food into smaller molecules | Chemical Digestion
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| The physical process that tears, grinds, and mashes large pieces of food into smaller ones | Mechanical Digestion
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