Check the statements that are a part of the early atomic theory. check all of the boxes that apply scientists believe that the atom is made up of elements. atoms combine in whole number ratios to form compounds. atoms cannot be created or destroyed during a chemical reaction.

Atoms combine in whole number ratios to form compounds.

Atoms cannot be created or destroyed during a chemical reaction.

Explanation:

In a chemical reaction mass is conserved, mass cannot be created or destroyed. Thus atoms cannot be created or destroyed during a chemical reaction.

Atoms combine in whole number ratios to form compounds. For example, in CO₂, one atom of C combines with two atoms of O.  

Elements are made up of atoms and not the reverse.

the answer is 303.15 or 303

b. accuracy of the data matters alot more than its number of digits, organization or amount of detail. quantitative observation is more accepted than the qualitative observation.