A few simple tricks can make typing and formatting math equations a breeze—no more clunky menus or endless formatting tweaks.

While you're watching, see if you can spot what is used in the middle of the word equation to show that a reaction has occurred. Chemical reactions happen all around us. When we burn methane in a ...

1 Write a word equation for the reaction. 2 Write a simple equation by writing the name of each substance with its symbol or formula. 3 Check whether the equation is balanced by counting the atoms ...