phy sci test 11 (chapter 15) study guide

reaction that occurs without continuing outside help

reaction that proceeds either direction

electricity produces a chemical reaction

produces electricity and is continually replenished from outside source

chemical reaction produces electricity

sour taste

bitter taste, slippery feel

formed by an acid and base

substances that undergo chemical change (left)

new substances produced (right)

energy is absorbed

energy is released

an atom gains an electron

an atom loses an electron

where oxidation occurs

where reduction occurs

chemical equation that has the same number of atoms of each element on both sides

kinetic energy that’s necessary for molecules to react

two or more substances combine to form a new substance

compounds break down

study of compounds containing carbon

represents concentration of hydrogen

range 7.1-14 on pH scale

range 0-6.9 on pH scale

substance that changes color depending on pH; example litmus

one or more hydrogen atoms are replaced by -OH groups

single bonds between carbon

one or more double bonds between carbon atoms

one or more triple bonds between carbon atoms

ring of carbon atoms

contain the group -COOH

contain -COO- group

one or more hydrogen atoms replaced by halogen atoms (Cl, Br, or I)

what does “LEO says GER” stand for?

electrons are transferred between atoms

relates energy gained by a system to the energy lost by its surroundings

an element in a compound is replaced by another element

two compounds exchange atoms or ions

system at equilibrium is disturbed, the system will react to partially offset the disturbance

when a strong acid and strong base react to produce water and a salt

electrolytic cells form a thin coating of metal on an object

doesn’t change in pH because it contains a weak acid and weak base

deals with rates of chemical reactions