science lesson 4-5


the individual objects or parts that combine or work together to form a whole


a atom or a group of atoms that has become electrily charged

polyatomic ion

an ion thats made of more that one atom

ionic bond

the attration between ions with oppisite charges

covalent bond

A chemical bond formed when two atoms share electrons


a natral group of 2 or more atoms together by covalent

nonpolar bond

a covalent bond in which electrons are shared equally

polar bond

a covalent bond in which electrons are shared unequally


A substance that tastes sour, reacts with metals and carbonates, and turns blue litmus red.


term used to describe acids that react with some metals by wearing away the metal


A compound that changes color in the presence of an acid or a base


A substance that tastes bitter, feels slippery, and turns red litmus paper blue.


A reaction between an acid and a base, yielding a solution that is not as acidic or basic as the starting solution were


a series of changes that happen over time and lead to an expected result


An ionic compound made from the neutralization of an acid with a base.

what are the 4 acids in your body