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Ruggiero Chapter 8

Vocab words

TermDefinition
Reactant A starting substance in a reaction. For example: baking soda and vinegar (reactants) = water and carbon dioxide and sodium acetate(products).
Product A new substance resulting from a chemical reaction. For example: baking soda and vinegar (reactants) = water and carbon dioxide and sodium acetate(products).
Chemical reaction A change or reaction that creates a new kind of matter (product) with different properties from the original matter (reactant). Wood (reactant) that burns makes charcoal (product).
Reactivity The ability of elements to take part in chemical reactions. Metals have high reactivity. Iron and oxygen creates rust.
Precipitate The solid product of a chemical reaction in a solution. Try adding lemon to a little bit of cream and see what happens.
Metal A substance that conducts heat and electricity
Conductivity The degree to which heat or electricity flows through an object
Insulator Something that resists the flow of energy, such as heat
superconductor A material that loses all resistance to electrical flow at super low temps
Malleable Capable of being rolled or pounded. Take a piece of aluminum foil and crunch it up = malleable!
ductile Capable of being drawn out into wire or thread
corrosion A gradual weakening and wearing away of something due to a chemical reaction.
alloy A mixture of two or more elements usually metals, such as brass, bronze, steel, or stainless steel.
salt A compound made of a metal and a nonmetal. A white substance that is found in sea water and in the Earth.
acid A substance that tastes sour, sharp, or biting. Litmus paper turns RED.
indicator Something that changes color in ways to let you identify a substance. Litmus paper is an indicator. Try boiling purple cabbage and use the juice to test different household products. Cabbage juice is the indicator.
base Tastes bitter. Litmus paper turns green. It reacts with an acid to form salt. Soap is a base.
neutralization reaction The reaction that occurs when an acid and a base react to form water and salt. Think antacids or alka-seltzer to reduce the acid in the stomach.
acidity Strength of an acidic reaction.
alkalinity Strength of a base solution.
pH scale The scale that measures the amount of acid or base solution. It measures the amount of charged hydrogen particles.
Created by: sbarone