What 4 elements did people at ancient greek time believe that all matter is made up?

6. what does the symbol ah stand for? o one calorie given off by a reaction the specific heat of a substance the heat capacity of a substance the heat of reaction for a chemical reaction

Type the letter that represents the correct location for each particle type below.

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %