A change that produces no new product and (usually) can be reversed

Chemical reaction in which energy is given off to the surroundings (exo=exit). The final product will feel warmer

A change that produces a new product with new properties

The substances that exist before the reaction has occurred.

A substance that tastes bitter, is a good conductor, turns red litmus paper blue

The substances that exist after the reaction has occurred

Horizontal rows of the periodic table

The building blocks of elements

A chemical reaction in which energy is absorbed. The final product will feel cooler

Found to the left of the “ladder”

generally shiny solids and good conductors

Found to the right of the “ladder”

exist in all three states of matter

A scientific law that states that the total mass of the reactants in a chemical reaction is always equal to the total mass of the products

Vertical columns of the periodic table

A charged atom in which the number of electrons is different from the number of protons

An atom with a negative charge

Where metals (+) bonds with non-metals (-) *stealing

Where non-metals bond with other non-metals *sharing

Is a group of atoms that together hold an overall ionic charge

A very rapid reaction of a substance with oxygen to produce oxides

An atom with a positive charge

A substance that tastes sour, reacts with some metals to produce hydrogen gas, is a good conductor

Where a compound is broken down into elements or smaller compounds

What type of chemical reaction is this?